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The students are forbidden, unless they have special passes, __ after 11 pm.
A.to stay out B.from staying out
C.staying out D.not to stay out
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— _______ ?
— It’s eight .
A. What day is it B. What’s five and three
C. How old are you D. What’s your telephone number
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We tried to ______ his doubts and let him tell the truth.
A.replace B.review C.remove D.rebuild
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Some people fear that ________ air pollution may bring about changes in _______ weather around the world. 21世紀(jì)教育網(wǎng)
A. /; the B. the; / C. an; the D. the; a 21世紀(jì)教育網(wǎng)
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The pull of gravity depends upon size, _______, upon mass. An object, whether its mass is big or small on the earth, ________in weightless conditions, like the outer space.
A. or rather; floats B. rather than; flies
C. to be more exact; flies D. other than; floats
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