问题

Last night Li Ping watched the football match at home when he ________ his homework.

A:need have done
B:must haven done
C:should have done
D:could have worked

正确答案是：

同类题型

_____ is no doubt _____ Jennifer will come to see me this weekend as usual.

It may not be a great suggestion. But before ______ is put forward, we will make do with it..

He has never been to New York ,________he

Jack, could you tell me for travelling this summer—We plan to go and see the beautiful sea in Hainan.

下列对课文的分析理解，不正确的一项是（）