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精英家教網 > 高中英語 > 題目詳情
Earth is believed ____ by an object the size of Mars at some point in the distant past before its surface
cooled.
[     ]
A. to be hit
B. to have hit
C. to have been hit
D. to hit
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The origin of ____ life on earth is ____ question that interests astronomers.(原創)

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Beijing had its biggest snowfall since 1951. Britain is suffering through its longest cold snap (寒潮) since 1981. And freezing weather is hitting the Deep South, including Florida’s orange groves and beaches.

Whatever happened to global warming?

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C. a big outbreak of Arctic air              D. its large population

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B. the zigzag pattern arises naturally accidentally

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科目:高中英語 來源: 題型:

I really don’t understand what_______ it ______ to hold beauty contest worldwide. In my opinion, it is a waste of money, time and energy.

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