______ there is 70% of  water on the planet, only about 1% of that water is drinkable.

试卷相关题目

• 1Please tell him _____ the camera is broken again, he will have to pay to get it repaired.

  A.what

  B.if that

  C.that if

  D.that

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• 2Experts are trying to work out a plan to deal with the problems caused by global warming________it is too late.

  A.when

  B.if

  C.before

  D.until

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• 3— How long do you think it is _______ he took up the job?— Half a year at least.

  A.when

  B.before

  C.that

  D.since

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• 4Animals suffered at the hands of Man _______they were destroyed by people to make way for agricultural land to provide food for more people.

  A.in which

  B.for which

  C.so that

  D.in that

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• 5—Have you told Joan the bad news that her grandfather fell off the bike and hurt seriously?—Yes. I told her ________I saw her this afternoon.

  A.while

  B.the moment

  C.until

  D.suddenly

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• 6--I am going to Sidney for further studies next month.--That's fantastic. Can you keep emailing me ______ you are there?

  A.though

  B.because

  C.until

  D.while

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• 7We must take measures to protect the endangered wildlife ______ it is too late.   

  A.before

  B.as long as

  C.now that

  D.unless

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• 8It has been three months ________the famous painting was stolen.  

  A.before

  B.since

  C.until

  D.unless

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• 9— It's been six weeks________he made a misunderstanding of me.— Don't worry.He's just too busy.

  A.since

  B.before

  C.when

  D.that

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• 10 ________ I accept that he is not perfect, I do actually like the person.

  A.While

  B.Since

  C.Before

  D.Unless

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