听下面一段较长对话，回答以下小题。
【小题1】How long has the man been working in the zoo?

A．For 25 years.

B．For 20 years.

C．For 15 years.

【小题2】How does the man describe his work?

A．Hard.

B．Well - paid.

C．Interesting.

【小题3】When does the zoo close in winter?

A．At 4:30 pm.

B．At 5:30 pm.

C．At 6:30pm.

【小题4】What does the man do in the z00?

A．He clears out cages.

B．He feeds the animals.

C．He does the management work.