单项选择题
[听力原文]
W: Mike, do you have a pet
M: Yes, in fact, we have three pets in my home: two dogs and a cat. My family actually raises dogs for helping blind people.
W: Oh, really How to train the dogs
M: Well, I mean, 12it’s a long process, right... 13we get them when they’re puppies... and so we train them basic... you know, sit, come... really basic things... then, after they’re about two years old, they are sent to a different training school.
W: Wow, that’s great! How many dogs do you train at a time
M: Yeah, just one dog at a time.
W: Oh, wow, that’s cool. 12I just wonder why people keep pets
M: 14I guess the most important thing is companionship’. Specially for the old people, they’d like to have pets to accompany them.
W: All fight. And 12what are some costs associated with keeping a pet
M: 15Food is probably the biggest cost, but also if you keep the dog, particularly a dog in your house. When they are puppies, they’ll chew up everything they can, so you have to constantly replace shoes and, you know, clean up pee from the carpet and things like that... so... it can be a hassle.
W: Oh, that’s really not a simple thing to raise a pet. Anyhow, the pets do make our life more colorful.
A. People raise a pet just for fun.
B. People raise a pet to watch the house.
C. People raise a pet to accompany them.
D. People raise a pet to help them do things.