They can learn some better ways of ------things.A.doing B.to

问题描述:

They can learn some better ways of ______things.A.doing B.to do C.do D.does
1个回答 分类:英语 2014-10-05

问题解答:

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A
of 是介词,介词后要接v-ing 形式
 
 
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