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A. How big is it? B. Is it very old? C. I'm reading a book about Beijing. D. How long is it? E. Can you go with me? |
Amy: Hello, Sam. What are you doing?
Sam: That's very interesting.
Amy: Oh, tell me more about Beijing.
Sam: It's got about twenty million people.
Amy: Wow! That's very big.
Sam: Yes, it is. And there's a famous Great Wall in Beijing.
Amy: Really?
Sam: It's more than twenty thousand kilometres long.
Amy: Wow! It's really long. I want to visit it some day.
Sam: Yes, I'd love to.
