-What’s his brother?-He is a teacher.He__________ maths at a school.
—You are Jim’s sister, aren’t you? —_________.
I don’t know when he _________ tomorrow. If he _________, I’ll let you know.
He won’t join in the party. I won’t, _________.
The price of this bicycle is quite _________. I don’t have enough money to buy it.
My father _________ Beijing on business for three days. He will be back in two days.