It is generally considered unwise to give a child he or she wants.A. howeverB. whatever C

问题补充：

It is generally considered unwise to give a child he or she wants.

A. however

B. whatever

C. whichever

D. whenever

答案：

A. however

(答案→)B. whatever

C. whichever

D. whenever

解析：whatever引导一个宾语从句，并且作wants的宾语。这里的whatever不能改成what，因为题意想表达的显然是“无论孩子要什么就给他/她什么是不明智的”，具有泛指的概念。同时要注意，这里whatever也不能改用no matter what，因为后者只能引导状语从句。