10. Scientists say it be five or six years before it is possible to test this medicine on patients.

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10. The Red Army 25,000 li during the Long March.

   A. adapted   B. covered

   C. evolved   D. surrounded

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II.單項(xiàng)填空

1. She have left school,for her bike is still here.

   A. can't   B. wouldn’t   C. shouldn’t   D. needn’t

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8. —I can't find my purse anywhere.

—You have lost it while shopping.

   A. may   B. can   C. should   D. would

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12. Nobody in the class but John and I that our Chinese teacher will go abroad.

   A. knew   B. know

   C. knows   D. had known

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11. While reading,an idea struck me books are the greatest invention of human beings.

   A. what   B. which

   C. whose   D. that

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11. Lake Tianchi is the highest volcanic lake in the world covering an areaabout ten square kilometres.

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4. Why should the dragon have a different character according to the passage?

   A. Because it is believed that they were from different myths.

   B. Because in the west the idea of the dragon might have come from snake.

   C. Because in China the idea of the dragon might have come from the alligator.

   D. All of the above.

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5. According to your words,you have known about it.

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