( ) 1. A. 12 years. B.12 years old. C. 12 yuan.
( ) 2. A. Yes, it is. B. No, they aren’t. C. Yes, he is.
( ) 3. A. She likes music. B. It’s 5 yuan. C. She’s my sister.
( ) 4. A. On the floor. B. It’s a pen. C. The first one.
( ) 5. A. Yes, please. B. Thank you. C. That’s good.