be supposed to do与was/were supposed to have done
be supposed to do与was/were supposed to have done
be supposed to do sth 与 be supposed to have done sth的区别
was/were supposed to do 和is/are supposed to have done是一样的意思吗
you were supposed to do,那么you were supposed to have done可以吗
Is/Are supposed to do 与Was/Were supposed to do 的区别是什么?具体用法?
be supposed to 和should have done
be supposed to do sth与should have done sth 有什么区别?
be supposed to be done 和be supposed to have been done的区别
be supposed to do
区分一下sth be supposed to do和sth be supposed to be done
be supposed to be\do
be supposed to have done +时间怎么用