57. The writer suggests one can get information about the different kinds of dogs .
A. by reading books about dogs B. by buying a dog from a pet shop
C. by watching dogs in a zoo D. by asking some friends
58. The passage is mainly about .
A. how to take care of dogs B. different kinds of books about dogs
C. how to choose the right dogs for family pets D. different kinds of dogs
答案：56-58 BAC
