-What are you going to do this weekend?-I don’t know. Igo to Beihai Park.A. mustB.

问题补充：

---- What are you going to do this weekend?

---- I don’t know. Igo to Beihai Park.

A. must

B. would

C. should

D. might

答案：

A. must

B. would

C. should

(答案→)D. might

解析：句意：--这个周末你打算做什么?—我不知道，我可能去北海公园。因为句中有:I don’t know可知是不确定的说法，所以用might，must“必须”，would“过去常常”，should“应该”，所以选D。