We can never expect ________ bluer sky unless we create ________ less polluted world.

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• 1With _____ average of $8,000, daycare costs for babies in the US range from $4,000 to $14,000 a year according to _____ data from National Child Care Center.

  A.the; a

  B./; the

  C.an; a

  D.an; the

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• 2She came in for ________ coffee and told me the noise of ________ traffic kept her awake last night.

  A.a; the

  B.a; /

  C.the; the

  D.the; /

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• 3It is ________ great honour for China to develop ________ fastest computer in today's world.

  A.a; the

  B.an; the

  C.an; a

  D.a; a

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• 4He wrote ________ song, which turned out to be rather popular with ________ young.

  A.a; the

  B.a; a

  C.the; a

  D.the; the

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• 5Dr. Peter Spence, ________ headmaster of the school, told us, '________ fifth of pupils here go onto study at Oxford and Cambridge.' 

  A./; A

  B./; The

  C.the; The

  D.a; A

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• 6I ate ________ sandwich while I was waiting for ________ 20:08 train.

  A.the; a

  B.the; the

  C.a; the

  D.a; a

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• 7It is believed that when _____ she-wolf loses her babies, she seeks _____ human child to take its place.

  A.a; a

  B.the; a

  C.a; 不填

  D.the; the

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• 8The party last night was_____ success; we sang and danced until it came to ____end at twelve.

  A.不填; 不填

  B.a; an

  C.the; an

  D.a; the

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• 9Last Sunday, we took, _____ guided walk around _____ sights of that famous town.     

  A.the; the

  B.a; 不填

  C.the; 不填

  D.a; the

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• 10Mrs Taylor has ____ 8-year-old   daughter who has _____ gift for painting-she has won twonational prizs.         

  A.a; a

  B.an; the

  C.an; a

  D.the; a

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