have done/to be done
have done/to be done
have been done 和 to be done
have it to be done
have sth done与have sth to be done
have sth to be done/have sth done?
have something done 与have sth.to be done 区别
歌曲中含有TO DO :TO BE DONE :TO HAVE BEEN DONE :TO HAVE DONE
have something done和need to be done
To be done being done
to have done,to be done,to have been done,having done在用法上有什么
be supposed to 和should have done
be used to have done是什么用法?