You _____ smoke when you see the sign. [ ]A. must B. shouldC. mustn’tD. needn’t-九年级英语

题目简介

You _____ smoke when you see the sign. [ ]A. must B. shouldC. mustn’tD. needn’t-九年级英语

题目详情

You _____ smoke when you see the sign.
[     ]
A. must
B. should    
C. mustn’t    
D. needn’t
题型:单选题难度:中档来源:同步题

答案

C

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