问题补充：
David says sounds right to Helen. That’s why she has made up her mind to live with him happens.
A. Whatever; whatever
B. No matter what; whatever
C. No matter what; No matter what
D. Whatever; however
答案：
(答案→)A. Whatever; whatever
B. No matter what; whatever
C. No matter what; No matter what
D. Whatever; however
解析：考察让步状语从句和主语从句。固定结构“特殊疑问词ever”既可以引导让步状语从句也可以引导名词性从句；而“no matter+特殊疑问词”只能引导让步状语从句。本题第一空使用whatever引导主语从句whatever David says，并作为动词say的宾语。第二空是whatever引导的让步状语从句。句意：David说的任何话对Helen来说都是对的。那就是为什么无论发生了什么事情，她总是觉得和他在一起的原因。故A正确。
