—What shall we do this weekend? — .Whatever you wantA. It's up to youB. I couldn't agree

问题补充：

—What shall we do this weekend?

— .Whatever you want．

A. Its up to you

B. I couldn agree more

C. No problem

D. It depends

答案：

(答案→)A. Its up to you

B. I couldn agree more

C. No problem

D. It depends

解析：A由你决定；B我非常同意；C没问题；D看情况而定；句义：—这个周末我们干什么？—由你决定，你想做什么就做什么。根据后半句的Whatever you want，可知周末的事情任由对方决定。故A正确。