题目列表(包括答案和解析)

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8. Columbus      America in 1492.

  A. invent      B. discover     C. invented     D. discovered

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7. This book can be used      a text book.

  A. for        B. as        C. in        D. to

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6. Sweaters are used for      .

  A. keep warm     B. keeping warm   C. to keep warmly   D. keeping warmly

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5. The twins were born      a Friday morning.

  A. in        B. at        C. on        D. of

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4. This machine doesn’t      smoothly.

  A. operate      B. operating     C. operation     D. operative

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3. She is old enough      there.

  A. drive       B. to drive     C. to drive to     D. drive to

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2. You’ve been very      to us. Thank you.

  A. helpful      B. help       C. helping      D. helpless

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1. The sun gives us      and light.

  A. heat       B. hot       C. hotter      D. fever

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26. How long will it take to swim      the river.

  A. over        B. across       C. through      D. in

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25. We have      for ten years.

  A. been married    B. gotten married   C. was married    D. went married

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