根据所给句子,选择最佳的应答语。每个选项只能用一次。 ( )1. What are you doing now? ( )2. Excuse me. Do you know where I can buy some stamps? ( )3. Could you tell me how to get to Killeen's Cafe? ( )4. Where do you often hang out on Sunday? ( )5. Have you watched Monkey King? A. I go to the watertown with my friends. B. Sure. It's so interesting. C. Go straight ahead. The bank is on your right. D. Sure. There is a post office on the left of the road. E. I'm going to the Sunville Bank. F. Of course. Take elevator to the third floor. It's next to the book store.