Whooping cranes migrate in winter to______

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• 1The U. S. government has planned to_______ updating public-transport systems.

  A.reduce traffic jams

  B.drive around

  C.go by bus

  D.spend more money

  E.travel regularly

  F.encou rage more private cars

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• 2Building more roads is not an effective way to_______

  A.reduce traffic jams

  B.drive around

  C.go by bus

  D.spend more money

  E.travel regularly

  F.encou rage more private cars

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• 3If charged high enough, some drivers may______ to enter certain parts of town.

  A.reduce traffic jams

  B.drive around

  C.go by bus

  D.spend more money

  E.travel regularly

  F.encou rage more private cars

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• 4Most American drivers think it convenient to______

  A.reduce traffic jams

  B.drive around

  C.go by bus

  D.spend more money

  E.travel regularly

  F.encou rage more private cars

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• 5Paragraph 4_______

  A.Paying to get in

  B.Changing work practice

  C.Not doing enough

  D.A solution which is no solution

  E.Closing city centres to traffic

  F.A global problem

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• 6Whooping cranes are native to_____

  A.Mexico.

  B.South America.

  C.North America.

  D.The Persian Gulf.

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• 7Operation Migration aims to______

  A.teach adult cranes how to fly.

  B.lead young cranes on their first trip south.

  C.breed cranes in special parks.

  D.transport cranes to the North.

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• 8The distance covered by the young whooping cranes on their trips south is_____

  A.120 miles.

  B.1,200 miles.

  C.1,931 miles.

  D.2, 000 miles.

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• 9If Operation Migration is successful, whooping cranes will______

  A.follow airplanes south every year.

  B.live in Canada all year round.

  C.learn to migrate on their own.

  D.be unable to fly back.

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• 10Why did the wild life experts visit the Kalahari Desert、

  A.To find where honey badgers live.

  B.To observe how honey badgers behave.

  C.To catch some honey badgers for foo

  D.D.To find out why honey badgers have a bad reputation.

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