题目内容：

听下面一段独白，回答以下小题。

1.What is the main purpose of Mr. Brown’s remarks?

A. To introduce a well-known conductor.

B. To introduce a visiting professor.

C. To introduce a famous pianist.

2.When did Mr. Roberson begin to play his own composition?

A. At the age of 5. B. At the age of 10. C. At the age of 40.

3.What is the most unbelievable adventure for Mr. Roberson?

A. No hotel rooms. B. Losing his instruments. C. Locked concert halls.

4.What will Mr. Roberson mainly do tonight?

A. To deliver a speech. B. To give a concert. C. To promote his new book.