I __my homework ,mom?Really?When did you finish it?A finished B have finished C had finished

题目

I __my homework ,mom?Really?When did you finish it?A finished B have finished C had finished
请给出原因 还有,请问finish 是延续性动词还是非延续性动词,有完成时吗?

答案

B! 是非延续性动词,当然有完成式
A 是一般过去时 C 是过去完成时
这里应该用现在完成时表示动作已经完成了