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

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：此处however 引导让步状语从句； whatever引导让步状语从句或名词性从句； whichever引导让步状语从句或名词性从句； whenever引导让步状语从句。句意：孩子要什么就给他什么是不明智的。Whatever引导宾语从句。