题目内容：

听下面一段较长对话，回答以下小题。

1.Who sent the man a letter?

A. His old colleague.    B. His former teacher.

C. His old schoolmate.

2.How was the man feeling at receiving the letter?

A. Shocked.    B. Sad.    C. Surprised.

3.What can we learn from this conversation?

A. The woman is keeping in touch with most of her friends.

B. Moving around so much makes people drift apart.

C. The man has not been in touch with the woman for ages.