听下面一段对话，回答第1-3题。

1. Why did Mary call Tom?

A. To ask him to attend a meeting of the Student’s Union.
B. To find out if the book they ordered is in.
C. To see if he has time to welcome new students.

2. What does Tom offer to do?

A. Help out when he has time.
B. Set up something with Ken.
C. Leave work early if he can.

3. When will Tom give his hand?

A. Saturday.  
B. Thursday and Friday morning.
C. It hasn’t been decided yet.