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Some people fear that ________ air pollution may bring about changes in _______ weather around the world.
A. /; the B. the; / C. an; the D. the; a
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Mary and I see each other ________, but not as often as we used to.
A. sooner or later B. once in a while C. in the end D. more or less
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Many children,______ parents are away working in big cities,are taken good care of in the village.
A. their B. whose
C. of them D. with whom
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________ many times, he finally understood it.
A. Told B. Telling C. Having told D. Having been told
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A person ______ e-mail account is full won’t be able to send or receive any e-mails.
A. who B. whom C. whose D. whoever
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I have two bicycles, ____ is made in Guangzhou;____ is made in Shanghai.
A.One…another B.The other…one C.One…the other D.One..the others
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The truth, Sir, is that the old man____ across the street when my car hit him.
A. was to walk B. had been walkingC. walked D. was walking
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_____ in thought completely, he didn’t even know what was going on.
A. Losing B. Lost C. Having lost D. Having been lost
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— I'd rather have some wine, if you don't mind.
— ____.
A. No, you'd better not B. Not at all, anything you want
C. Thank you all the same D. Yes, but not good
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---Is it Pro. King that will give the lecture on radiation?
--- I can't __ I know it for sure.
A. say B. tell C. speak D. talk
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