问题描述:
There are 19 students go to school by bus.对吗?必须用going吗!
There is a dog sleeping under a tree.绝对要用doing.可这个句子不是现在进行时,也不是将来时啊!
There is a dog sleeping under a tree.绝对要用doing.可这个句子不是现在进行时,也不是将来时啊!
问题解答:
我来补答展开全文阅读