Let’s go to a movie after work OK?— A. Not at all.B. Why not?C. Never mind.D. What of it?

问题补充：

Let’s go to a movie after work, OK?—

A. Not at all.

B. Why not?

C. Never mind.

D. What of it?

答案：

A. Not at all.

(答案→)B. Why not?

C. Never mind.

D. What of it?

解析：在英文中，对于别人的建议，我们可以用that’s a good idea或why not等形式来表示愿意的回答，故本题选B。