be supposed to do sth

be supposed to do sth 用be supposed to do sth造句 be suppose to do sth还是supposed 区分一下sth be supposed to do和sth be supposed to be done be supposed to do sth 与 be supposed to have done sth的区别 be supposed to do sth的否定形式 用be supposed to do sth句型造十个句子 be consided to do sth 和be supposed to do sth 有什么区别 be supposed to do 请问be supposed to do sth 与 should do sth 有哪些区别呢? be supposed to be\do 急求初中英语语法知识总结.　　例：need doing sth be supposed to do sth