----(ride) a bike to school only takes him about 10 minutes.

问题描述:

____(ride) a bike to school only takes him about 10 minutes.
1个回答 分类:英语 2014-11-30

问题解答:

我来补答
动词作主语只能用动名词(即动词ing形式),所以是riding
 
 
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