1. 听第二段对话，回答小题。

1. （1） What does Tim think of his volunteer work?    

   A . It's difficult but happy． B . It's relaxing and interesting． C . It's difficult and meaningless．
3. （2） How often does Tim go to the animal hospital?    

   A . Once a week． B . Twice a week． C . Three times a week．
5. （3） When will Tim and Mary meet this Sunday afternoon?    

   A . At 2：30． B . At 3：00． C . At 3：30．