—Is this ____ car?—Yes, it’s ____ English car.A. a; an B. a; a C. an; an
--- I feel tired and sleepy. --- Why not stop ______?
--- Betty, could you answer my question? --- Sorry, Mr. Green. I didn’t hear you. I _______ about something else.
--- I won’t have time to go shopping with you this afternoon. --- But you ________ me yesterday.
His father often tells him _______ in that river because it’s dangerous.
--- The office isn’t _______. Will you please turn on the lights? --- Sure.