was supped to do 和 is supposed to have done的区别,他两个小时前就该来了,应该用哪个句型,期待权威的回答,因为要参加高中考试

分类: 作业答案 • 2022-01-02 15:52:47

问题描述：

was supped to do 和 is supposed to have done的区别,他两个小时前就该来了,应该用哪个句型,
期待权威的回答,因为要参加高中考试

答