问题
— You shouldn’t have talked back to our teacher like that. It was awfully impolite.— You are right. I ______ crazy at that moment.[ ]
A: must be
B: could have been
C: must have been
D: should have been
B: could have been
C: must have been
D: should have been
正确答案是：
同类题型
________ the present unemployment continue, the society would face a more troublesome situation.
It _______ ten years since my sister ______ an English teacher.
You never imagine what trouble I have had______ your house．Ittook me nearly 2 hours．
When was Michael Jackson born– He was born in Indiana ____________ August 29th, 1958.