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。