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

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• 1Building 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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• 2If 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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• 3Most 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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• 4Paragraph 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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• 5Paragraph 3_______

  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 migrate in winter to______

  A.find warmth and food.

  B.raise baby whooping cranes.

  C.get human help.

  D.lay eggs.

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• 7Whooping cranes are native to_____

  A.Mexico.

  B.South America.

  C.North America.

  D.The Persian Gulf.

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• 8Operation 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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• 9The 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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• 10If 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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