题目内容
— Has Sam finished his homework today?
— I have no idea. He _____ it this morning.
— I have no idea. He _____ it this morning.
[ ]
A. did
B. has done
C. was doing
D. had done
B. has done
C. was doing
D. had done
C
练习册系列答案
阅读快车系列答案
相关题目
— Has Sam finished his homework today?
— I have no idea. He ________ it this morning.
|
A．did |
B．was doing |
C．has done |
D．had done |