1 . 听下面一段较长对话，回答以下小题。
1. Who are the speakers waiting for?

A．The manager.

B．The waiter.

C．Their fiiends.

2. How long will they go on waiting before leaving?

A．15 minutes.

B．10 minutes.

C．5 minutes

3. What do they probably think of the service of restaurants?

A．Good.

B．Poor.

C．Average