题目内容
You ________ all those calculations(计算)! We have a computer to do that sort of thing.
- A.needn't have done
- B.shouldn't have done
- C.mustn't have done
- D.can't have done
A
第二句话表明原来进行的计算根本没必要。
第二句话表明原来进行的计算根本没必要。
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