题目内容

— What do you think of the young lady?
— She is hard-working. She ________ all her effort into her work before she got ill.

A.has put B.put C.had put D.would put 

C

解析试题分析: 句意:你认为那个年轻的女士怎么样?她工作努力。她生病前把所有的精力投放到工作中了。put effort into把精力花费在;花费精力在生病之前,过去的过去为过去完成时,故选C.
考点:考查过去完成时。

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