Scientists are warning that ________ emissions of carbon (碳排放) are cut, we could be heading for an environmental disaster.

试卷相关题目

• 1________ you need something, please don't hesitate to let me know.

  A.Even though

  B.In case

  C.As though

  D.Even if

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• 2Kids don't learn their native language consciously, ________ they become fluent in it very fast.

  A.but

  B.and

  C.for

  D.so

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• 3Although Anne is happy with her success, she wonders ________ will happen to her private life.

  A.that

  B.this

  C.it

  D.what

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• 4—How will you deal with these papers, Ann? —I will leave them to ________ takes over the job.

  A.anyone

  B.someone

  C.whoever

  D.no matter who

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• 5The new system needs to be in operation for five months ________ it can be updated.

  A.as

  B.while

  C.before

  D.once

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• 6Some experts have said that ________ children believe they can succeed, they will never become totally confident of themselves.

  A.if

  B.since

  C.once

  D.unless

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• 7We can't wait any longer ________ we'll miss the plane.

  A.or

  B.but

  C.so

  D.yet

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• 8Don't be afraid of asking for help ___________ it is needed.

  A.unless

  B.since

  C.when

  D.although

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• 9_________ impresses me most is _________ Chinese students are well organized and disciplined. We should learn from them.

  A.Which; what

  B.What; that

  C.What; whether

  D.That; what

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• 10— Don't you believe me? — ________, I'll believe ________ you say.

  A.No; whatever

  B.Yes; whatever

  C.No; no matter what

  D.Yes; no matter what

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