题目内容

—HiMary.Would you like to go to the concert this evening?

—SorryTom.________ tomorrow's lessonsI have no time to go out with you.

ANot preparing BNot having prepared

CNot to prepare DBeing not prepared

 

B

【解析】根据句意可知,选项动词为原因状语,表主动,强调动作的完成性,相当于一个原因状语从句:As I haven't prepared tomorrow's lessons...故应选B(Not having prepared)

 

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