she is good at swimming.为什么是swimming?

问题描述:

she is good at swimming.为什么是swimming?
1个回答 分类:英语 2014-10-20

问题解答:

我来补答
因为be good at 词组的意思是擅长做某事,而at是介词,介词后面接动词doing形式,所以就是swimming
 
 
展开全文阅读
剩余:2000
上一页:为什么只选B
下一页:第8题练习