— What are you going to do this weekend?— I don’t know. I visit a friend.A. mightB. canC.

问题补充：

— What are you going to do this weekend?

— I don’t know. I visit a friend.

A. might

B. can

C. should

D. must

答案：

(答案→)A. might

B. can

C. should

D. must

解析：句意:--这周末你去做什么？--我不知道，我可能去看望我的一个朋友。Might可能，可能性较小；can能，有时会；should应该；must一定，必须。根据句意故选A。