上课是:have classes 为什么句子时就变成了:they are having a class
问题描述:
上课是:have classes 为什么句子时就变成了:they are having a class
如果你说他是单数句但是class要加es?
我记得老师说过,而且还很简单
可是我忘了!
答
have classes 上课(不止一节课)
They are having a class.他们在上(一节)课.
希望能帮到你,祝你开心.