—Mary looks down today. What is up?
—Well， happened between Mary and me is none of your business.
A. wherever
B. whoever
C. whatever
D. no matter what
网友回答
A. wherever
B. whoever
(答案→)C. whatever
D. no matter what
解析：考察名词性从句。本句中的whatever happened between Mary and me引导的是一个主语从句。Whatever在句中作主语。D项不能引导名词性从句，A项不能在句中作主语。B项指人。故C正确。