______ David says sounds right to Helen. That's why she has made up her mind not to leave him ______ happens.
【正确答案】
A
【答案解析】考查whatever与no matter what的区别。no matter what只能引导让步状语从句。whatever既可引导名词性从句(如主语从句、宾语从句、表语从句),也可用于引导让步状语从句。whatever引导让步状语从句时一般可以和no matter what互换。第一空为主语从句引导词。只能用whatever;第二空为让步状语从句引导词,whatever与no matter what均可.答案为A。