摘要： throw litter about
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Don't throw litter ______. You must give ______ your bad habit.
[ ]
A. up; in
B. about; up
C. on; up
D. about; on
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B. about; up
C. on; up
D. about; on
She asked them ________ waste paper about.
[
]|
A ．not to throw |
B ．don't waste |
C ．not litter |
D ．no litter |
—Hey, boy! We should keep the park clean. You _________ throw litter about.
—Sorry, I won't do that again.
—Sorry, I won't do that again.
[ ]
A. mustn't
B. needn't
C. couldn't
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B. needn't
C. couldn't