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Youdidturninyourreportontime,butit

練習題1.01W

問題詳情:

Youdidturninyourreportontime,butit

You did turn in your report on time, but it______better, you know.

A. could be done                                B. must be done

C. could have been done                 D. must have been done

【回答】

C

知識點:虛擬語氣

題型:選擇題

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