补全对话。
| A．it’s not a good manner in public places. |
| B．It’s also very dangerous. |
| C．Let me take a photo for you. |
| D．I think he is taking photos. |
E. It’s the longest wall in the world.
F. I want to take better photos.
Mary：Wow, look at the Great Wall. It’s really great.
Tracy：Yes, ________
Mary：Oh, look at that man over there. What is he doing?
Tracy：________But he is climbing up on a tree.
Mary：That’s a bad manner. ________
Tracy：Yes, we should tell him not to climb up on that tree. Let’s go.
Mary：Excuse me, sir.
Man：Yes?
Tracy：What are you doing up there?
Man：________.
Tracy：But it’s not safe to climb up on the tree and ________.
Man：Right, thank you very much. I shouldn’t do that________.
Mary and Tracy：OK. Smile!
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