— Do you think I should go to the seaside for a rest?-- . You have been busy for such

问题补充：

— Do you think I should go to the seaside for a rest?

---- . You have been busy for such a long time.

A. It depends.

B. It’s up to you.

C. Why not?

D. What about you?

答案：

A. It depends.

B. It’s up to you.

(答案→)C. Why not?

D. What about you?

解析：考查交际用语。A看情况；B由你决定；C为什么不？D你怎么样？句意：—你认为欧文应该去海边度假吗？—为什么不呢？很长一段时间里，你都是这么忙。根据句意说明后者同意前者的看法，故C正确。