题目内容

_______ to find the book from the library, she decided to turn to her professor for help.

A.FailedB.To failC.Having failedD.Being failed

C

解析试题分析:句意:从图书馆没有找到那本书,她决定向她的教授求助。现在分词作原因状语。上下文所
说的事情发生的时间显然有时间的先后。故要用现在分词的完成式="Because" she had failed to find the book
from the library…
考点:考查非谓语动词作原因状语

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