题目内容
If they had known what was coming next, they __ their mind.
- A.may change
- B.could change
- C.must have changed
- D.might have changed
D
考查情态动词。if引导的条件状语从句与过去是相反,主句中要用would/should might have done. 而must have done表示一定已经做了某事。
考查情态动词。if引导的条件状语从句与过去是相反,主句中要用would/should might have done. 而must have done表示一定已经做了某事。
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