— Are you coming to Jeff’s party?— I’m not sure. I go to the concert instead.A. mustB. wo

问题补充：

— Are you coming to Jeff’s party?

— I’m not sure. I go to the concert instead.

A. must

B. would

C. should

D. might

答案：

A. must

B. would

C. should

(答案→)D. might

解析：根据I’m not sure判断，表示说话者不确定，有可能去音乐会。might 表示“可能”；must表示“必须，一定”；would表示“将，愿意”；should表示“应该”。