题目内容：

听下面一段独白，回答以下小题。

1.What is required for guests?

A. A photo ID.    B. A life jacket,    C. Gym shorts.

2.What must be reported to the gym staff?

A. Spitting.    B. Children's "accidents".    C. Any illness after swimming.

3.At what age can children swim alone?

A. Nine years old.    B. Ten years old.    C. Eleven years old.

4.Which pool policy has changed?

A. The business hours.    B. The showering rules.    C. Required swimming clothes,