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          【題目】You ____ be Carol. You haven't changed a bit after all these years.
          A.must
          B.can
          C.will
          D.shall

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          【題目】Like ancient sailors, birds can find their way _______the sun and the stars.
          A.used
          B.having used
          C.using
          D.use

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          【題目】Many parents happily paid a lot of money, only ______ the tours were not rewarding enough for their children.

          A.findingB.foundC.to findD.have founding

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          【題目】The earthquake d a lot of houses and many people became homeless.

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          【題目】________ by feelings of loneliness, I started crying.

          A.FrustratingB.To be frustratedC.FrustratedD.Having frustrated

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          【題目】You never told me the reason why you made an a for that position.

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          【題目】大量的錢被花在學(xué)校建設(shè)上。(amount)

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          【題目】Scientists have warned that coral reefs are likely to become the world’s first ecosystem ______ because of global warming.

          A.to disappearB.disappearingC.disappearedD.having disappeared

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          【題目】無論什么時候需要,你都可以征求建議。(whenever)

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          【題目】One of the meteor (隕石) pieces was found to have crashed into a frozen lake, ________ a six-meter wide hole.

          A.leftB.leavingC.to leaveD.having left

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