问题
选择题
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
答案：A
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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：A
