_______ to find the book from the library, she decided to turn to her professor
题型：不详难度：来源：
_______ 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 |
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答案
| 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… |
举一反三
Dina, for months to find a job as a waitress, finally took a position at a local advertising agency.| A．struggling | B．struggled | C．having struggled | D．to struggle |
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Be careful when you cross the road in rush hours so as to avoid by a car．| A．being knocked down | B．knocking down | | C．to be knocked down | D．to knock down |
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The maker of the popular game Angry Birds announced on Tuesday that it would open its first overseas operation in Shanghai, ______ a clear step to further enter the booming Chinese market. | A．to mark | B．marking | C．marked | D．having marked |
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______ by the clear waters, this forest provides visitors with a wonderful chance to see some endangered birds in the wild.| A．Being surrounded | B．Surrounding | C．Surrounded | D．To be surrounded |
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l"m afraid that I can"t attend Tom"s wedding party_______next weekend.| A．to be held | B．being held | C．held | D．is to be held |
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