—What shall we do tonight then?——whatever you want.A. Help yourself B. It’s a deal C. No

—What shall we do tonight then?
— —whatever you want.
A. Help yourself
B. It’s a deal
C. No problem
D. It’s up to you

A. Help yourself B. It’s a deal C. No problem (答案→)D. It’s up to you解析： A. Help yourself 请自便，B. It’s a deal成交，C. No problem没问题，D. It’s up to you由你决定，句意：--那么今晚我们该怎么做？--由你决定，你想怎样就怎样。所以选D。

哦，回答的不错