◎ 题干
— Shall we have a smoke here? 
— No, we _______ because the workers are carrying some gas.
[     ]
A. mustn't          
B. won't          
C. can't            
D. needn't
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“— Shall we have a smoke here?— No, we _______ because the workers are carrying some gas.[ ]A. mustn'tB. won't C. can'tD. needn't…”主要考查了你对  【情态动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。