听句子,选择恰当的应答语。 ( )1. A. I'm Alice ( )2. A. It's a jacket. ( )3. A. Good morning! ( )4. A. Hello! ( )5. A. It's U-F-O B. Thanks B. I'm OK. B. Good afternoon! B. I'm fine B. It's black C. Hello, Cindy! C. It's red. C. Good evening! C. Thanks C. What's this?