Look!They ( )(swim)用什么形式填空
问题描述:
Look!They ( )(swim)用什么形式填空
答
are swimming
有了look,显然是用现在进行时
答
答案; are swimming
look 是现在进行时的标志词,结构:主语+ am/ is/ are + 现在分词
不明白的再问哟,请及时采纳,多谢!