III.         Just like people, animals also need to see a doctor when they get sick. Of course, a doctor for animals aredifferent from that for people. He is called a veterinarian, or a vet. Some vets work in big cities. They mostlylook after family pets. When your dog has a bad cold, or your cat eats bad food, you may need to take it to thevet. About every six months, you also need to take your pet to the vet for shots or have it checked.         Some vetswork on farms to help sick farm animals, like pigs, horses, and sheep.Sometimes they help a cow to give birth to a baby. There are still other vets who work at the zoo. Zooanimals also need to be taken good care of (被照顧). Can you imagine how a zoo vet helps ferocious animals,like a lion or a tiger, when they get sick? How dangerous it is! * mostly 大部分地； look after 照顧； shot 預防針； give birth to 生產； imagine 想像； dangerous 危險的
【題組】6. From the reading, how often should you take your pet to the vet?
(A)Every year.
(B)Twice a year.
(C)Six times a year.
(D) Once a month.