Помогите пожалуйста. Я не очень поняла.

A) A: Excuse me! B: Yes? A: Do you have a pen? B: I am sorry, I dont A: That ok b) A: Can I close the window. Its very cold. B: Yes of course. c) A: I am sorry, I am late. The traffic is bad today. B: Dont worry, come in and sit down