We ______ last night, but we went to the cinema instead.

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We ______ last night, but we went to the cinema instead.

A. must have studied

B. might study

C. should have studied

D. would study

参考答案:

C7.答案为C。我们昨晚本应学习,但是我们去电影院了。should+现在完成式表示过去应做却没有做到的事。