1. This passage is mainly about_______.
A. homing pigeons and their training
B. how to buy a homing pigeon
C. protection of homing pigeons againstthe threat of extinction
D. liberation of homing pigeons
2. According to the passage, whathappens to homing pigeons when they are about a month old?
A. They are kept in a trap.
B. They enter their first race.
C. They begin a training program.
D. They get their wings clipped andmarked.
3. According to the passage, thedifference between a homing pigeon and an ordinary one is_______.
A. the span of the wings B. the shape ofthe eyes
C. the texture of the feathers D. thesize of the brain
4. The author mentions all of thefollowing attributes that enable a homing pigeon to
return home EXCEPT_______.
A. instinct B. air sacs
C. sensitive ears D. good eyes
5. Why does the author mention bees,ants, toads, and turtles in the last paragraph?
A. To describe some unusual kinds ofpets.
B. To measure distances traveled byvarious animals.
C. To compare their home-findingabilities with those of homing pigeons.
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