问题补充:
You should consider carefully the car you want to buy is worth the money.
A. that
B. which
C. whether
D. what
答案:
A. that
B. which
(答案→)C. whether
D. what
解析: 句意:你应该认真思考是否你想买的车值这个价钱。Consider后面接的是宾语从句,根据句意应该用whether连接宾语从句,表示“是否”,that连接宾语从句的时候,从句的意思是完整的,which哪个,what什么,所以选C。