题目内容
_______ to find the book from the library, she decided to turn to her professor for help.
| A.Failed | B.To fail | C.Having failed | D.Being failed |
C
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…
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