(·重庆高考)—What are you doing this Saturday?—I'm not sure but I go to the Rolling Stone

问题补充：

(·重庆高考)—What are you doing this Saturday?

—Im not sure, but I go to the Rolling Stones concert.

A. must

B. would

C. should

D. might

答案：

A. must

B. would

C. should

(答案→)D. might

解析：选D考查情态动词。由答语中的“Im not sure”可知，答话人对自己的安排还不能确定，因此用might，表示“可能，或许”。must表示肯定的推测，意为“必须，一定”；would表示意愿；should表示“应该”。