◎ 题干
— Mom,Dad is smoking again!
— Well, let him cut it ________ gradually since old habits die hard.
[     ]
A. off      
B. down    
C. up  
D. out
◎ 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“— Mom,Dad is smoking again!— Well, let him cut it ________ gradually since old habits die hard.[ ]A. offB. down C. upD. out…”主要考查了你对  【介词和介词短语】  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。