1 . 听下面一段独白，回答以下小题。
1. Who is the speaker most probably?

A．A host.

B．A salesman.

C．A professor.

2. What’s the prize for the winners this time?

A．Two music discs.

B．Two football tickets.

C．Two concert tickets.

3. How many questions should the winners answer correctly?

A．3.

B．10.

C．12.

4. What does the speaker remind the listeners at last?

A．Their addresses must be correct.

B．They needn’t write down the details.

C．Everyone has only one chance.