It was very kind of you to clean the off

考试题库2022-08-02  14

问题 It was very kind of you to clean the office, though you ____.(  )A. needn’t do B. wouldn’t have C. didn’t have to D. mustn’t have done

选项 A. needn’t do
B. wouldn’t have
C. didn’t have to
D. mustn’t have done

答案 C

解析 have to表示“不得不”,前加否定,表示“用不着”。
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