We last night,but we went to appreciate the flowerbeds and streetlights in Tian’anmen Square instead.
A. might study
B. could study
C. should have studied
D. must have studied
网友回答
A. might study
B. could study
C. should have studied
D. must have studied
解析: 考查虚拟语气。依据题干中的last night可知,A、B两项错误,此处不是表猜测;而must have done表示“一定做过某事”,不符合句意;should have done表示“本应该做某事而没做”。