5 exercises — use it-clefts and wh-clefts to place precise emphasis in incident reports, architectural recommendations, and post-mortems.
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1 / 26
The team wants to emphasise that the N+1 query problem (not the network) caused the latency spike. Which cleft sentence achieves this?
"It was [X] that [verb phrase]" is the standard it-cleft structure that places emphatic focus on X. It is especially useful when correcting a misconception — "it was the N+1 query, not the network." Option A is grammatically fine but less emphatic. Option C has an incorrect comma after "was." Option D is not a valid cleft structure. It-clefts are common in post-mortems: "It was the missing index that caused the full table scan."
2 / 26
What ___ is a centralised secrets management solution — storing credentials in environment variables is not sufficient.
"What + subject + verb + is + [emphasis]" is the wh-cleft (pseudo-cleft) structure. "What we need is a centralised secrets management solution" — the "what" clause acts as the subject, and the emphasised element follows "is." "What is needed" would be a passive version (acceptable but less direct). "What do we need" is a question form, not a cleft. The wh-cleft is common in architectural recommendations: "What this system needs is better observability."
3 / 26
The reason ___ was that the health check endpoint was excluded from the load balancer's routing rules.
"The reason why [clause] was that [explanation]" is a reason-cleft structure emphasising the cause. It is heavily used in incident reports and root cause analyses. "The reason the service appeared healthy was that..." is also acceptable (omitting "why"), but option B correctly identifies the "why"-cleft form. This construction clearly separates the phenomenon (service appeared healthy) from its cause (excluded health check endpoint).
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Which sentence uses a reverse wh-cleft (nominal cleft) correctly?
A reverse wh-cleft (or nominal cleft) puts the emphasis at the front: "[Emphasised element] is what [clause]." Option A: "Better monitoring is what the team needs most urgently" — emphasises "better monitoring." This is the opposite word order from a standard wh-cleft ("What the team needs most urgently is better monitoring") and gives slightly different rhythmic emphasis. Options B, C, and D are grammatically incorrect arrangements.
5 / 26
The architect wants to highlight WHEN the problem emerged. Which cleft sentence is correct?
In it-clefts, use "that" after the emphasised element — regardless of whether the element is a time, place, person, or thing: "It was [time/place/person/thing] THAT [clause]." Option B incorrectly uses "when" instead of "that" — a very common error. The rule is that "that" is used in the cleft structure; the original question word is not repeated in the cleft. Option C and D have incorrect word order that breaks the cleft construction.
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Sarah, the senior engineer, commented on David's pull request: 'The database connection pooling wasn't configured correctly. That's precisely why the application was timing out.' Which cleft sentence best captures Sarah's emphasis?
This question tests the use of cleft sentences to highlight the *cause* of a problem. Option 2 directly states the cause (misconfiguration) as the focus, using 'That's precisely why' for emphasis. Options 1 and 4 shift the focus away from the core issue, while option 3 is too vague.
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Mark sent a Slack message to the team: 'The API response indicated a 500 error. It's clear that the server-side logic failed.' What cleft sentence does Mark use to emphasize the severity of the issue?
This question assesses the ability to employ cleft sentences for dramatic effect. Option 3 uses 'It's clear' as a fronted constituent to immediately draw attention to the crucial element – the failed server-side logic. The other options rephrase the sentence without this emphatic structure.
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Ben, during a standup update, stated: 'The team had been struggling with the authentication flow. It was the lack of proper validation that caused the majority of the errors.' Which cleft sentence does Ben use to highlight the root cause?
This question assesses understanding of cleft sentences used to pinpoint the core reason behind a problem. Option 2 uses 'It was the lack of proper validation' as the emphasized fronted constituent, directly identifying the source of the errors. The other options shift the focus away from the cause.
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Lisa, a technical lead, commented on a code review: 'The error handling wasn't implemented consistently throughout the module. That's precisely why we encountered unexpected exceptions.' Which cleft sentence best conveys Lisa's point?
This question tests the correct application of cleft sentences for emphasis, specifically highlighting the reason for an issue. Option 3 uses 'That's precisely why' to immediately draw attention to the cause – the inconsistent error handling. The other options rephrase this key point without using this emphatic structure.
10 / 26
Sarah, the senior engineer, commented on David's pull request: 'The database connection pooling wasn't configured correctly. That's precisely why the application was timing out.' Which cleft sentence best captures Sarah's emphasis?
This question tests the use of cleft sentences to highlight the *cause* of a problem. Option 2 directly states the cause (misconfiguration) as the focus, using 'That's precisely why' for emphasis. Options 1 and 4 shift the focus away from the core issue, while option 3 is too vague.
11 / 26
Mark sent a Slack message to the team: 'The API response indicated a 500 error. It's clear that the server-side logic failed.' What cleft sentence does Mark use to emphasize the severity of the issue?
This question assesses the ability to employ cleft sentences for dramatic effect. Option 3 uses 'It's clear' as a fronted constituent to immediately draw attention to the crucial element – the failed server-side logic. The other options rephrase the sentence without this emphatic structure.
12 / 26
Ben, during a standup update, stated: 'The team had been struggling with the authentication flow. It was the lack of proper validation that caused the majority of the errors.' Which cleft sentence does Ben use to highlight the root cause?
This question assesses understanding of cleft sentences used to pinpoint the core reason behind a problem. Option 2 uses 'It was the lack of proper validation' as the emphasized fronted constituent, directly identifying the source of the errors. The other options shift the focus away from the cause.
13 / 26
Lisa, a technical lead, commented on a code review: 'The error handling wasn't implemented consistently throughout the module. That's precisely why we encountered unexpected exceptions.' Which cleft sentence best conveys Lisa's point?
This question tests the correct application of cleft sentences for emphasis, specifically highlighting the reason for an issue. Option 3 uses 'That's precisely why' to immediately draw attention to the cause – the inconsistent error handling. The other options rephrase this key point without using this emphatic structure.
14 / 26
Sarah, the senior engineer, commented on David's pull request: 'The database connection pooling wasn't configured correctly. That's precisely why the application was timing out.' Which cleft sentence best captures Sarah's emphasis?
This question tests the use of cleft sentences to highlight the *cause* of a problem. Option 2 directly states the cause (misconfiguration) as the focus, using 'That's precisely why' for emphasis. Options 1 and 4 shift the focus away from the core issue, while option 3 is too vague.
15 / 26
Mark sent a Slack message to the team: 'The API response indicated a 500 error. It's clear that the server-side logic failed.' What cleft sentence does Mark use to emphasize the severity of the issue?
This question assesses the ability to employ cleft sentences for dramatic effect. Option 3 uses 'It's clear' as a fronted constituent to immediately draw attention to the crucial element – the failed server-side logic. The other options rephrase the sentence without this emphatic structure.
16 / 26
Ben, during a standup update, stated: 'The team had been struggling with the authentication flow. It was the lack of proper validation that caused the majority of the errors.' Which cleft sentence does Ben use to highlight the root cause?
This question assesses understanding of cleft sentences used to pinpoint the core reason behind a problem. Option 2 uses 'It was the lack of proper validation' as the emphasized fronted constituent, directly identifying the source of the errors. The other options shift the focus away from the cause.
17 / 26
Lisa, a technical lead, commented on a code review: 'The error handling wasn't implemented consistently throughout the module. That's precisely why we encountered unexpected exceptions.' Which cleft sentence best conveys Lisa's point?
This question tests the correct application of cleft sentences for emphasis, specifically highlighting the reason for an issue. Option 3 uses 'That's precisely why' to immediately draw attention to the cause – the inconsistent error handling. The other options rephrase this key point without using this emphatic structure.
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During a code review, Alex commented: 'The timeout was caused by the lack of proper rate limiting. It's precisely what led to the cascading failures.' Which sentence best reflects Alex's emphasis using a cleft?
This question tests understanding of nominal clefts when emphasizing a cause. The correct answer uses the 'that' clause *after* the cleft to clearly link the two parts of the sentence. Options B and C are incorrect because they place the 'that' clause incorrectly, disrupting the flow. Option D is also wrong as it unnecessarily repeats the information.
19 / 26
In a Slack message to the team regarding a deployed microservice, David wrote: 'The service returned a 500 error. It was the missing dependency that triggered it.' Which of the following sentences best demonstrates David's use of a cleft for emphasis?
This question focuses on a common Slack scenario. The correct answer utilizes the cleft structure to highlight the *cause* of the error—the missing dependency—making it the most impactful statement. Options B and C incorrectly reorder the sentence elements. Option D is grammatically awkward.
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In a PR description for a new feature, Emily wrote: 'The increased load resulted in the system crashing. It was the inadequate memory allocation that caused it.' Which of the following sentences best exemplifies Emily's use of a cleft to emphasize the root cause?
This question assesses understanding of cleft sentence structure within a technical document context – a PR description. The correct answer correctly places 'that' following the clefted element (system crashing) to clearly state the cause (inadequate memory allocation). Options B and C are incorrect reorderings. Option D is grammatically awkward.
21 / 26
During a standup meeting, Chloe reported on debugging an issue with a new API endpoint. She said: 'The error was caused by the incorrect handling of null values. It's precisely this lack of null checks that led to the 404 errors.' Which sentence best reflects Chloe's emphasis using a cleft structure?
Chloe's use of 'It's precisely this lack…that led to the 404 errors' is a classic example of a cleft sentence. It clearly establishes the *cause* (missing null checks) and its direct consequence (404 errors), highlighting the key issue for her team.
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During a code review discussion on a problematic database query, David stated: 'The slow response times were caused by the missing index. It's precisely this lack of indexing that resulted in full table scans.' Which sentence best reflects David's emphasis using a cleft structure?
David's use of 'It's precisely this lack…that resulted in full table scans' is a standard example of a cleft construction. This structure clearly establishes the *cause* (missing index) and its direct consequence (full table scans), making it an effective way to convey the problem's significance.
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During a code review of a new microservice deployment, Sarah commented: 'The service consistently returned a 500 error. It was the missing authentication middleware that triggered it.' Which sentence best reflects Sarah's emphasis using a cleft structure?
Sarah uses a cleft sentence to highlight *what* caused the error – the missing middleware. The core of the statement is 'It was… that triggered it', emphasizing causation. The other options present the same information in a more descriptive or less emphatic way.
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Lisa, a technical lead, wrote in a PR description: 'The API endpoint returned an error code. It was the insufficient rate limiting that caused it.' Which sentence best demonstrates Lisa's emphasis using a cleft?
Lisa's sentence employs the cleft structure – 'It was… that caused it' – to pinpoint the insufficient rate limiting as the root cause of the error. This is a concise and impactful way to communicate critical information during a PR review.
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Alex was reviewing a pull request for a new caching layer. He noticed the system frequently experienced timeouts. 'The timeouts were caused by insufficient memory allocation.' Which of the following best demonstrates Alex's emphasis using a cleft sentence to highlight the root cause? It was the inadequate memory allocation that caused it.
This question tests understanding of using cleft sentences to emphasize a *cause*. The core structure 'It was X that caused Y' is key. Option A focuses on configuration, option B on timing, and option C directly mirrors the correct sentence's construction and emphasizes memory allocation as the problem. Option D misrepresents the cause.
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During a Slack discussion about a deployed feature, Maria wrote: 'The feature failed to deploy successfully. It was the missing environment variable that caused it.' Which of the following options best reflects Maria's emphasis using a cleft sentence? It was the missing environment variable that caused it.
This question tests recognizing cleft sentences used for highlighting *cause*. The sentence structure 'It was X that caused Y' is central to the exercise. Option A correctly uses this structure; options B and C offer alternative ways to express a problem without employing the cleft construction. Option D offers a different type of issue.
What will I practise in "Cleft Sentences for Emphasis — Grammar Exercises"?
Practise it-clefts and wh-clefts for emphasis in technical communication — incident reports, RFCs, and architectural presentations. 5 advanced exercises.
How many exercises are in this module?
This module has 26 multiple-choice exercises, each with instant feedback and a full explanation of the correct answer.
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