It's impolite to <u>cut in</u> when two persons are holding a conversation

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• 1During his lifetime he was able to <u>accumulate</u> quite a fortune.

  A.control

  B.spend

  C.collect

  D.exchange

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• 2The chemical is <u>deadly</u> to rats but safe to cattle.

  A.fatal

  B.hateful

  C.good

  D.useful

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• 3The conference <u>explored</u> the possibility of closer trade links.

  A.denied

  B.investigated

  C.stressed

  D.created

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• 4Almost all economists agree that nations <u>gain</u> by trading with one another.

  A.work

  B.profit

  C.rely

  D.prove

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• 5The train came to__________stop, making us wonder where we were.

  A.an uncertain

  B.a slow

  C.an unexpected

  D.a smooth

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• 6Ordinary plants are unable to survive in the desert mainly because of the changeable weather.

  A.Right

  B.Wrong

  C.Not mentioned

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• 7Grasses and flowers in desert are able to survive because they stay in the form of seeds to wait for the right amount of water to come.

  A.Right

  B.Wrong

  C.Not mentioned

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• 8Grasses and flowers in the desert whose life cycles are short shows their ability to adapt to the quick disappearance of rainwater there after it falls in spring.

  A.Right

  B.Wrong

  C.Not mentioned

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• 9Winter is the toughest season for grasses and flowers to survive in desert

  A.Right

  B.Wrong

  C.Not mentioned

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• 10The shoot system of perennials can help the plants absorb less of the sun's ray.

  A.Right

  B.Wrong

  C.Not mentioned

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