阅读理解。    
     Last month I went to stay with my cousin Ken, who is a vet. I've always been interested in animals.
I wanted to have a week's work experience with a vet, so it seemed a good idea.  My cousin Ken is
friendly and easygoing, so I stayed with him, too. We had a lot of laughs.
     In their practice, they do a lot of "small-animal" work. In other words, they look after people's pets,
and don't work much with farm animals. Even so, it was very interesting. During the week I helped as
much as I could.  I cleaned out the animals' cages and boxes, as some of them are kept in the building
for a night or a couple of days.  I also fed them.  I looked after the owners when they arrived with their
pets, and made cups of tea and coffee for the two vets and the assistant. I watched all the operations
that were done and asked lots of questions.
     On my last day, I helped in an operation on a cat, which had a bad leg.  Sometimes a vet needs
another pair of hands. The cat lived, by the way!
     I wasn't sure what a vet's job would be like, and I found it was very interesting.  I learnt that a vet
needs a lot of scientific knowledge. Science isn't my best subject, therefore I feel that it is not a job for
me. Even so, I'm still pleased with the work experience that I had.  It's a great help while you're trying
to make up your mind.
1. Which of the following is TRUE?
A. There were good reasons for the writer to stay with Ken for a week.
B. The writer had expected to stay with Ken before.
C. The writer didn't feel happy until he stayed with Ken.
D. Ken wasn't friendly until the writer stayed with him.
2. From the second paragraph, we know _________.
A. vets like Ken don't do a lot of work with farm animals
B. the writer helped them less and asked more
C. there were more farm animals than small animals there
D. the writer could do the operations on the animals
3. Sometimes the vets were _________.
A. very worried about the cat        
B. very busy
C. sorry for the animal's death        
D. sure what they did
4.The underlined sentence "it is not a job for me" means _________.
A. the writer knew a vet's job well
B. the writer didn't want to do that kind of job
C. the job didn't interest the writer
D. he didn't like science at all