听句子，选择适当答语，每个句子仅读一遍。 (     )1. A. We go to school on Monday. B. We go to school on Friday. C. We go to school on weekdays. (     )2. A. The computer can't give us much help. B. We can do lots of things with the help of the computer. C. We can't live without the computer. (     )3. A. Look, I've bought a new watch. B. Oh, it's still early. C. It's a quarter to nine. (     )4. A. That's a good idea. Let's make a plan for the journey. B. What do you think of it? C. The Great Wall is the longest wall in the world. (     )5. A. It doesn't matter. B. Don't be so serious. C. I'm sorry. I got up late again.