The man in the store won’t change money for him ()he buys something.

The man in the store won’t change money for him ()he buys something.


A、

if 


B、

or 


C、

but 


D、

unless


【正确答案】:D
【题目解析】:

商店里的人不会为他换钱,除非他买东西。unless除非,符合题意。if如果; or或者;but但是。 


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