单项填空You

问题详情：

单项填空

You ______ arrive at six am, but you arrived at seven last Sunday.

A. supposed to    B. were supposed to  C. are supposed to  D. were supposed

【回答】

 B  由last Sunday可知应用一般过去时，排除C项；be supposed to 意为“应该，理应”,故选B。

知识点：动词时态

题型：选择题