听对话，选答案。
(     ) 1. A. None.        
            B. Two.        
            C. Four.
(     ) 2. A. Because she overslept.
            B. Because she was ill.
            C. Because she worked as a volunteer.
(     ) 3. A. On foot.        
            B. By bike.    
            C. By bus.
(     ) 4. A. At about 8:00,            
            B. At about 9:00.
            C. At about 8:30.
(     ) 5. A. Go fishing.  .            
            B. Climb mountains.
            C. Play cards.