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——Iwonderhowmuchyouchargeforyourservices.Thefirsttwoarefree()thethirdcosts30$.A.whileB.untilC.whenD.before

题目详情
——I wonder how much you charge for your services.
___The first two are free ( )the third costs 30$.
A.while B.until C.when D.before
▼优质解答
答案和解析
选A,while表转折,前2个免费但第3个要花30美元 ,翻译同楼上