听句子,并选择恰当的应答语。 ( )1. A. It’s a ball. ( )2. A. Yes, she is. ( )3. A. It’s on the table. ( )4. A. Yes, they’re on the bed. ( )5. A. Thank you. B. It’s under the bed. B. Yes, he is. B. He’s under the desk. B. No, they aren’t. B. Here you are. C. They are on the floor. C. Yes, they are. C. This is my backpack. C. No, they don’t. C. Sure.