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

问题补充：

—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

答案：

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。