问题

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
B:could study
C:should have studied
D:must have studied
正确答案是:
同类题型
There are some health problems that, when _______ in time, can become bigger ones later on.
190. What impressed me most was that theynever__________even when they failed once again.
is some doubt Tom will come to see me this weekend as usual.
Would you mind _______here —I’m sorry about that. I’ll go somewhere else.