There is no point advocating banning smoking in public ________ the law is introduced.A.whenB.unles

题目简介

There is no point advocating banning smoking in public ________ the law is introduced.A.whenB.unles

题目详情

There is no point advocating banning smoking in public ________ the law is introduced.
A.whenB.unless
C.sinceD.because
题型:单选题难度:中档来源:不详

答案

B
B 考察连词。句义:除非成为法律条文,否则在公共场所倡议禁止吸烟是没有意义的。When当..时;unless除非;since自从;because因为;故B正确。

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