根据下列短文,回答题。 What might the house of the future be like? Grac

根据下列短文,回答题。What might the house of the future be like? Grace can tell.More forma

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While (  )the sun, the satellite has sent more than four bil

While (  )the sun, the satellite has sent more than four billion bits of informa

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In Britain people drive (  )the left.

In Britain people drive (  )the left.A.at B.on C.to D.in

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This popular sports car is now being (  )at the rate of a th

This popular sports car is now being (  )at the rate of a thousand a week.A.turn

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Once out of the earth’s gravity, the astronauts is (  )by th

Once out of the earth’s gravity, the astronauts is (  )by the problem of weightl

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