问题
选择题
—Mum, I want some pocket money.
—Well. I won’t give it to you __________ you wash your clothes.
A．if
B．unless
C．while
D．though
答案
答案：B
题目分析：if如果，unless除非，while当，though尽管。句意：妈妈，我想要写零花钱。除非你把衣服洗了，我才给你钱。故选B。
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