Civil Service Exam Reviewer · Grammar · hard
Which of the following sentences is grammatically correct?
- Not only the agency cut costs, but it also improved its services.
- Not only did the agency cut costs, but it also improved its services.
- Not only did the agency cut costs, but also it improves its services.
- Not only did the agency cuts costs, but it also improved its services.
Answer
B. Not only did the agency cut costs, but it also improved its services.
Solution
"Not only" at the start requires inversion with "did" plus the base form, and the tenses must match.
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