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。