选择方框里的词补全对话。

A: Hello, Mr Black. What's your job?

B: I work in a swimming centre. I can save people. Guess. What am I?

A: You are a .

B: That's right.

A: Do you live the swimming centre?

B: No. My home is far from it. I go to work by .

A: Do you like your job?

B: Yes. It is very . I love it very much. What do you want to be in the future, Tom?

A: I want to be a teacher. I want to teach Maths. Maths is my subject.