---He attend at the meetingBut in fact he didn’t come.A. is suppose to B. was suppos

问题补充：

---He attend at the meeting.

--- But in fact he didn’t come.

A. is suppose to B. was suppose toC. was supposed to

答案：

解析：句意：他应该出席这个会议。——但是实际上他没有来。可知上文描述的是过去发生的动作，故用过去时态，他是被期望的对象，用完成时态，选C。