---To achieve a bright future,we should _____study hard _____keep in good health.---I agree with you.
----How about having a picnic next weekend?---- It _____great.
Lucy is ill.She has a bad cold for several days.
You go and ask Tom.He know the answer.
— I put the bike here?—No,you can’t.
—Who is knocking at the door?—It be Miss Zhang.Because she has just gone to Japan.