1 . 听下面一段独白，回答以下小题。
1. How long does each eye contact last in American normal conversation?

A．About one second.

B．About two seconds.

C．About one minute.

2. What's the proper street behavior in America?

A．You should show your curiosity to the passers-by.

B．You should ignore the passers-by.

C．You should show that you are aware of the presence of passers-by.

3. Why does a person in England flash his eyes while listening to others?

A．To show he is very interested in the speech.

B．To show he is not fond of the speech.

C．To show he is very tired.

4. What does an American expect the listener to do?

A．Flash his eyes.

B．Nod or whisper something.

C．Say nothing.