After _____dinner, I like to sing a song for ____ short time.A a;an B an;a C /;an D /; a
Don’t spend __________ time playing computer games . It’s bad for your eyes.
Is there _____________ in today’s newspaper?
If we ________ careful, fire can be dangerous.
Miss Li came into the classroom ____ a smile _______ her face.
His friend found______________ to tell him the truth .