--Is it _____ pen? --Yes. It' s ______ orange pen. A a; a B. an; an C. a; an D. an; a
Please call Mike _________ 235-0285.
What’s that ________ Chinese?
—Is your name Cindy? —_______________.
—______ is your teacher? —Mary. She is a nice girl.
—What’s your car number? —______ 665488.