— Why do you look so sleepy in class, John?— Sorry, sir. I __________________ to watch a live Music Festival last night.
I don’t know ______ a show. Can you tell me?
---It is selfless ______ the doctor to devote all the time he had ________ for the patients. --I think so, they are so great.
I agree with most of what you said, but I can’t agree with ______.
--- Sharon, remember to lock the door before leaving the house. -- ______.
______ exciting sport it is to climb the mountains!