◎ 题干
Shopping online can save much time as you _____ go to a shop or walk around crowded shopping centers.
[     ]
A. don't have to
B. oughtn't to
C. won't
D. mustn't
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Shopping online can save much time as you _____ go to a shop or walk around crowded shopping centers.[ ]A. don't have toB. oughtn't to C. won'tD. mustn'…”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。