-Why didn’t you attend the lecture yesterday? -I didn’t think that we on Sundays

—Why didn’t you attend the lecture yesterday?

—I didn’t think that we _______ on Sundays.

A. should      B. ought to have      C. shouldn’t have      D. will have to

试题答案

C

解析:

首先排除B、D，B表示一种委婉，此时没必要，D项must语气不对。shall表单纯的将来，而will更好，表示我们将来愿意去。