— Could I have an interview with Mr Green now, please?— Sorry, he _________ a meeting. You’d better wait a minute.
— Do you think Jim will be the new chairperson this term? — ____________. He is so selfish (自私).
The rich man __________ much food__________ the poor families during the hard time.
If Simon ________ hard, he _________better results in English.
I think math is not ________ science.
The old man has________ useful horse and horse can do a lot of things for him.