用prefer,have done,have been doing分别造句
用prefer,have done,have been doing分别造句
have been done 和 have been doing
to be done to have been done to have been doing 形式的造句,
have been doing和have done
has been doing have been done区别
have been doing ,have done和have doing区别
have been done和have been doing 和having been done和having done
having been done have been done have been doing 区别?就是have 和h
have being done 和have been doing 的区别是什么?分别举个例子.
have been done;have been doing;have been n(如friends);have be
英语时态区分have done .have been doing.had done.had been doing.有什么
BE BEING DOING/BE BEING DONE/HAVE BEEN DONE