问题补充:
—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
答案:
A. should
B. ought to have
(答案→)C. shouldn’t have
D. will have to
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。