问题
选择题
You _______ read when the car is moving, Karen. It's bad for your eyes. [ ]
A. couldn't
B. mustn't
C. may not
D. needn't
答案
答案：B
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You _______ read when the car is moving, Karen. It's bad for your eyes. [ ]
A. couldn't
B. mustn't
C. may not
D. needn't
答案：B