16.It takes her 20 minutes ________her homework.A.finish B.finishing C.finished D.to finish填什么,为什么

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16.It takes her 20 minutes ________her homework.A.finish B.finishing C.finished D.to finish填什么,为什么
16.It takes her 20 minutes ________her homework.A.finish B.finishing C.finished D.to finish
填什么,为什么

16.It takes her 20 minutes ________her homework.A.finish B.finishing C.finished D.to finish填什么,为什么
答案:D

解释:
1. 这是一个固定句型,即:it take somebody some time to do sth,意思是“花费某人多少时间做某事”.
其中it为形式主语,真正的主语是后面的不定式短语to do sth.
2. 所以此题答案D为正解,即使用不定式to finish her homework做真正的主语.


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