I want very much is a new car.A. All whichB. All thatC. All whatD. What that

问题补充：

I want very much is a new car.

A. All which

B. All that

C. All what

D. What that

答案：

A. All which

(答案→)B. All that

C. All what

D. What that

解析：考查定语从句。All是先行词， I want very much是定语从句，从句缺少want的宾语，且all是不定代词，后面的定语从句要用that引导，排除A,C；D项把that去掉，变成what引导的主语从句也是正确的。所以选B。