While other scientists are keeping____eye on changes in the H5N1 bird flu strain, the scientists in England are working on vaccines, in case it becomes highly infectious in ____humans.

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• 1. Sophie dreams of walking in __________ outer space like __________ astronaut one day.

  A./; the

  B./; an

  C.an; an

  D.a; an

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• 2Though he failed many times in the election, he never lost _______ heart and at last was elected _________President of the US

  A.A.／；a

  B.a；the

  C.his；the

  D.／；／

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• 3The poor woman goes to ______prison once a year to see her husband who is in______prison.

  A.a; the

  B.the; the

  C.the; 不填

  D.不填; 不填

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• 4I'd love ______ room on the higher floor so that I can have a bird's-eye view of _____ city.

  A.the; a

  B.a; the

  C.不填; the

  D.a; a

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• 5The experiment is______failure．But do remember that，in the face of  _______ failure，you should still keep up _______good state of mind．

  A./；the；the

  B.a；/；the

  C.the；/；the

  D.a；/；a

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• 6The United Nations set _______ deadline for that country to accept _______ peace plan.

  A.the; the

  B.the; a

  C.a; the

  D.a; a

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• 7--- Now the situation has been kept under ______ control. --- Yes. ______ role John played in it was very important.

  A.the; A

  B./; The

  C.the; The

  D./; A

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• 8At ______ games in Johannesburg, South Africa, the North Korean team, which returned to ______ World Cup after 44 years, lost in ______ close-scoring game, 1-2, to the Brazilians.

  A.the; the; a

  B./; /; the

  C./; the; the

  D.the; /; a

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• 9China's growth is not _______ threat to others. On _______ contrary, it will bring more opportunities to the world.

  A.The; a; /

  B.The; /; the

  C./; a; /

  D./; a; the

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• 10The blues has been _____part of African-American culture since then, and it is still ______ important part of American culture.

  A.a; a

  B./ ; an

  C.the ; a

  D./ ; a

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