Daniel is always willing ________ others _________ with their Math.
The number of the students in our school increasing now and a number of them abroad.
--Do you know________ this dictionary belongs to?--Let me see. Oh, it’s__________.
Don't forget the door if you are the last person .
Pizza is ready now, and it ___________ nice. Would you like some?
Please keep your mouth ____ and your eyes _______ .