选择合适的句子，补全对话

A. But I'm feeling bored. B. Of course. C. Where is Sam? D. Great! Let's go! E. He's climbing the wall.

A: Hi, Lingling.

B: Sorry, I don't know. Oh! Look!

A: Sam, don't climb the wall. It's dangerous.

C: I'm sorry, Peter.

A: Do you want to play a game?

C:

A: Let's play hide-and-seek.

B&C: