The underlined word “they” refers to ____ .

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• 1When there are no stimuli, a dog will  ____.

  A.wag to the left

  B.wag to the right

  C.not wag at all

  D.wag to the left and then to the right

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• 2The underlined word“intensity” in the passage means ____ .

  A.surprise

  B.worry

  C.excitement

  D.interest

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• 3The video cameras were used to catch the dogs’ responses because ____ .

  A.it was easier to catch the dogs’response changes in the tail wagging

  B.the dogs were put in the wooden boxes and tested one at a time.

  C.they enabled the dogs’owners to know about their dogs’habit

  D.the dogs wagged their tails in different directions when they were in different moods

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• 4From the advertisements above, we can learn that ____ .

  A.Globe Insurance Company has a history of 51 years

  B.as a medical transcriptionist, you may earn $ 25,000 a month

  C.Bradford Pulications offers a treatment to hearing impaired parents

  D.you can visit www. aic. com when you invent a new model of hearing aid

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• 5According to the information above, if your child has hearing problems, you can turn to  ____.

  A.At-Home Profession Corp.

  B.Globe Insurance Company

  C.Bradford Pubbcations

  D.American Inventors Corp.

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• 6The purpose of doing the experiment is ____ .

  A.to train dogs for their owners

  B.to help people judge the mood of dogs

  C.to help dogs find company

  D.to help people choose their pet dogs

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