--You must come back every month.
--Yes, I ________.
--What can I do for you?
--I'd like two ________.
-Do you know him well?
-Sure.We ________ friends since ten years ago.
-Do you know when the World Cup ________ next week?
-Next Thursday.When it ________, I'll ring you.
---Can you tell me the way to the hospital, please?
---Sorry, I don't know.______.
-The air is very fresh(新鲜的) ________. Shall I open the window?
-Yes, please.
---Are you free next Saturday?
---______.