be supposed to be和be supposed to do有什么区别

be supposed to be和be supposed to do有什么区别
be supposed to be和be supposed to do有什么区别

be supposed to be和be supposed to do有什么区别
前者是应该去做某事 后者是(别人)猜测某人会去干某事
be supposed to应该做某事,相当于ought to do 和should,口语中更多使用be supposed to和should例句：A:Stop messing my life!
二者也都可表一种可能性 都不是很确定的的语气 但是be supposed to常用