来自陈小天的问题
therebesbdoingtherebesbdoing一定吗?也就是说如果是这样,therearemanypeoplewaitingfortheirtrainsyesterday,还给几个例子你们搞错了,我的意思是,如果是过去时,也可以用sbdoing?如上例therearemany
therebesbdoing
therebesbdoing一定吗?也就是说如果是这样,therearemanypeoplewaitingfortheirtrainsyesterday,还给几个例子
你们搞错了,我的意思是,如果是过去时,也可以用sbdoing?如上例therearemanypeoplewaitingfortheirtrainsyesterday
1回答
2019-11-0603:02