--What color is the ruler?-- ________A.It's a ruler.B.It's white.C. It's a white.
—______ your aunt?— She is a doctor.
Please ______in bed. It’s bad for your eyes.
. There’ re _____ boys in the classroom ,but there aren’t _____ girls in it.
Mr Black is __________ father
— _______ is your farther? — He’s fine