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AsfarasIknow,        theirtaskaheadoftime,theyoftenstay...

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问题详情:

AsfarasIknow,        theirtaskaheadoftime,theyoftenstay...

As far as I know,         their task ahead of time,they often stayed up late into the night.


    A. finishing        B. having finished  C. finished         D. to finish

【回答】

D

知识点:不定式

题型:选择题