Rainbows (彩虹) are ________ when sunlight passes through small drops of water in the sky.

试卷相关题目

• 1They climbed across the mountain ________ snow.

  A.covers with

  B.covered with

  C.covering with

  D.having covered with

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• 2He ________ going to the front last year.

  A.was informed of

  B.was informed

  C.was informed from

  D.informed him

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• 3The OPEC has recently cut back production and the price of oil has been ______ to $90 a barrel (桶).

  A.risen

  B.raised

  C.arisen

  D.arose

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• 4The thief stole the lights, _______ the stairs even darker.

  A.make

  B.to make

  C.making

  D.and make

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• 5The dictionary ________ where you ________ it when you left yesterday.

  A.lay ,lay

  B.lies ,lied

  C.lies ,laid

  D.laid ,laid

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• 6As soon as the building ________ fire last night, the firefighters were sent immediately.

  A.catch

  B.was caught

  C.caught

  D.was catching

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• 7When the fire broke out, people ________ to the exit.

  A.went

  B.walked

  C.rushed

  D.left

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• 8As the centuries went by, humans made more and more words. This is what we now ________ by language.

  A.refer to them

  B.tell

  C.think

  D.mean

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• 9Whether or not the plan will be carried out still ________.

  A.remain for us to see

  B.is remained to be seen

  C.remains to be seen

  D.are remained to see

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• 10Two weeks ______ enough for us to finish the work.

  A.are

  B.is

  C.have

  D.had

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