— Could we practice playing the guitar in the hall, Sir ?—No , ___________ you have the principal’s

题目简介

— Could we practice playing the guitar in the hall, Sir ?—No , ___________ you have the principal’s

题目详情

— Could we practice playing the guitar in the hall, Sir ?                  
—No , ___________ you have the principal’s (校长) note.        
A.ifB.unlessC.becauseD.since
题型:单选题难度:中档来源:不详

答案

B

试题分析:句意:先生我们能在大厅练习弹钢琴吗?不行,除非你有校长的批条。A. if如果B. unless 除非,如果不C. because因为D. since自从……。根据句意,故选B。

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