We’ll have a class meeting. Don’t leave the classroom ______ 6 o’clock. [ ]

Mr Liu is a very popular doctor, so he is always busy______his work.[ ]

My coat _______ there behind the door. Can’t you see it?

_____is this blue sweater?—It’s 36 dollars.[ ]

Do you know Johnny Dean, the rock singer ________ funny glasses and long curly hair? [ ]