听录音,选答句。 ( ) 1. A. It's red. ( ) 2. A. Yes, it is. ( ) 3. A. Put on your sweater. ( ) 4. A. It's a jacket. ( ) 5. A. Welcome to our school. B. It's seven o'clock. B. No, they aren't. B. Open up your umbrella. B. They're my jeans. B. Mr Liu, help! C. It's cloudy today. C. Yes, that is. C. Put on your sunglasses. C. It's a clock. C. Great! Let's go!