---What can I do for you, sir?--- I want _______apple juice and _____apple.A./; an B. an; an C. a; a
hard Tony is working!
I don’t remember _____ the book yesterday.
—Do you know___? —He is a dentist.
—Excuse me, could you tell me where_____? — Sure, sir. You can try
— I don't know______. — Because he has to look after his mother.