—Shall I take the luggage to your room?—No thanks. A. It’s up to you.B. You’d better not.

问题补充：

—Shall I take the luggage to your room?

—No, thanks.

A. It’s up to you.

B. You’d better not.

C. I can manage.

D. That’s settled.

答案：

A. It’s up to you.

B. You’d better not.

(答案→)C. I can manage.

D. That’s settled.

解析：考查交际用语。A由你决定；B你最好不要这样做；C我自己能行；D就这么办吧！句意：—要不要我帮你把行李送到你的房间？—不，谢谢你。我自己能行。故C正确。