问题补充:
We last night, but we went to the party instead.
A. must have studied
B. might study
C. should have studied
D. would study
答案:
A. must have studied
B. might study
(答案→)C. should have studied
D. would study
解析:考查should have done本该做…而没做,句意:我们昨晚本该学习的,但去参加聚会了。Must have done过去一定做了。选C。