Because of the Russian gas limit to Europe, attempts _________ to use botanical fuel as a source of power.

试卷相关题目

• 1. If a computer crashes, you will lose the file you _________unless you save it regularly.

  A.are working

  B.work

  C.will work

  D.worked

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• 2—Have you seen your aunt lately? —Yes, in fact I saw her yesterday．I_________ her for several months．

  A.haven't seen

  B.didn't see

  C.hadn't seen

  D.don't see

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• 3. BRT ______ improve a city's public transport and it is a symbol of the city's progress as well.

  A.is meant to

  B.means to

  C.means

  D.is meant for

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• 4______Oh, much smoke here ! Somebody _____ the window, please.

  A.opens

  B.open

  C.shall open

  D.will open

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• 5. ----Is there anything wrong, Bob? You look sad. ----Oh, nothing much. In fact, I ________ of my friends back home.

  A.have just thought

  B.was just thinking

  C.would just think

  D.will just be thinking

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• 6In his letter, he said it was the third time that he ______ Zhuhai.

  A.had visited

  B.visited

  C.has visited

  D.would visit

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• 7Something _______ wrong with the machine, and it _______ not work.

  A.being; could

  B.going; should

  C.were; might

  D.went; would

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• 8Large quantities of fish _______ in the river in the past few days.

  A.were caught

  B.was caught

  C.has been caught

  D.have been caught

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• 9. Many wild animals in the world _______ , so we must take measures to protect them.

  A.are dying out

  B.have died out

  C.died out

  D.die out

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• 10It is ________ the customers' needs that has made chain stores so popular in big cities in Chin

  A.A.meeting

  B.met

  C.to have met

  D.being met

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