问题描述： 区分一下sth be supposed to do和sth be supposed to be done 1个回答 分类：英语 2014-10-24 问题解答： 我来补答 前者主动,后者被动.由于是STH,因此,主动的情况下应该较少.The clock is supposed to work.钟当是正常的（能工作）.The work is supposed to be done by Fri. 展开全文阅读
