为什么有doing=to be done
为什么有doing=to be done
to be done=doing?
being done 和 be doing ;done ;doing ; be done ;to be done 的用法
need doing 和 need to be done有什么区别?
有哪些词与need相似“+doing=+to be done” 要全!
to be done 与 to doing
英语中,V+to be done都=V+doing?
非谓语中to be done =doing?
sth request to be done=sth request doing
need doing 和need to be done
be worth doing 和be worth to be done 有什么区别?
Be said to do和be said to be doing和be said to have done有什么区别