He devoted all the time _____ his research .A．to doB．doingC．to doingD．did
题型：不详难度：来源：
He devoted all the time _____ his research .| A．to do | B．doing | C．to doing | D．did |
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答案
| C |
解析
试题分析：考查词组：devote all the time to doing，致力于做…,句意：他所有时间都致力于他的研究。选C。
点评：英语中有的词组的to是介词后面要接动名词做宾语，如：be used to doing，look forward to doing等，不要和不定式混用。 |
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