----It is _________ ruler. ---- It is not __________ eraser.A. /, an B. a; an C. the; the
A: Here's a coat ________ you. B: Thank you very much.
A: Are you ill? B:________.
A: I'm tired. B:________ don't you go to bed?
A: I'm cold. B: Here is a ________ for you.
A: Come and have breakfast. B:________.