1 . Three-fourths of the surface of the earth ________ sea.
A.is | B.are | C.was | D.were |
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2 . 地球表面的四分之三被水覆盖着。
_______ is covered with water.
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3 . The whole surface of the earth was being changed, melting and flowing before my eyes. (英译汉)
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4 . The “natural” greenhouse effect refers to the fact that heat from the sun enters the atmosphere and warms Earth's surface as short-wave radiation. (英译汉)
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