问题
Who did the teacher ________ the exercises?
A:have done
B:have do
C:had done
D:has done
B:have do
C:had done
D:has done
正确答案是：
同类题型
He is leaving ______ Beijing next month. [ ]
I can’t thank you ____ much because without your help I ____have won the first prize.
Do you think the first problem in this math test difficult?—Yes．I could work it out．
Why not go to see the dolphin show with me?——Because I_________ it.
Are you pleased with the result of the math exam?—Not at all. I can’t have ______ one.