—How are you, Mr. Wang?-________.A.Sit down, pleaseB.Good morningC.Fine, thank you .
One of the waiters _________ my uncle.
I don’t have any brothers _______ sisters.
________ do you ________ this book?
Please read it and give the answer ______ the question.
— Why not sit in your own seat, Mary? I can’t see the blackboard clearly because two tall boys are sitting _____ me.