— What are you going to do this weekend? — . If time permits I may go to Shanghai with my

问题补充：

— What are you going to do this weekend?

— . If time permits, I may go to Shanghai with my friends.

A. Don mention it

B. It doesn matter

C. Forget it

D. It depends

答案：

A. Don mention it

B. It doesn matter

C. Forget it

(答案→)D. It depends

解析：句意：周末你打算做什么？ 看情况而定。如果时间允许，我可能和朋友们去上海。It depends.意思是现在还没最终定下来，要看情况。

其他三项的用法：A. Don’t mention it ：不客气。用于回答道谢。B. It doesn’t matter ：不要紧。用于回答道歉。C. Forget it：没关系，用于回答道歉。