根据所听问句,选择正确的答语。
( ) 1. A. She's not here.
B. I'm fine.
C. Thank you.
( ) 2. A. They are very good.
B. No, they aren't.
C. Yes, they aren't.
( ) 3. A. I'm fifteen.
B. It's five.
C. I'm fine.
( ) 4. A. She's my mother.
B. That's my father.
C. My father is a man.
( ) 5. A. No, thanks.
B. Sure.
C. You can help me.