题目内容
17.The desk that ____clean so I could do homework was always surrounded with bowls of bad milk,old magazines and so on.( )A. | may have been | B. | would have been | ||
C. | must have been | D. | should have been |
分析 句意:那张本应该干净,这样我可以用来做家庭作业的桌子总是被几碗坏牛奶,旧杂志等其他东西包围着.
解答 答案D.
"may have done"过去可能做了某事;"would have done"本来会做某事而没做;"must have done"过去肯定做了某事;"should have done"本应该做某事而没做.根据句意:那张本应该干净,这样我可以用来做家庭作业的桌子总是被几碗坏牛奶,旧杂志等其他东西包围着.故选D.
点评 本题考查情态动词+have done 的用法,要掌握其用法并结合具体的语境选择出正确的选项.
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