It doesn’t matter you pay by cash or credit card in this store.A. whetherB. howC. whatD. w

问题补充：

It doesn’t matter you pay by cash or credit card in this store.

A. whether

B. how

C. what

D. why

答案：

(答案→)A. whether

B. how

C. what

D. why

解析：这里it是形式主语，whether引导的是真正的主语从句。句意：是用现金还是刷卡付账都没有关系。故选A。