---Where’s Li Hua?---Look! He _______ tennis on the playground.
Look! The students _____ the classroom.A. cleaning B. are cleaning C. are clean
—May I use your bike?—_____A. Of course not. B. Of course. Here you are. C. I don’t have a bike.
—Hi, Lily. Happy New Year!—_____A. Thank you all the same. B. The same to you. C. I’m OK.
—_____ does your mother usually go to the office?—By bus.A. How B. What C. Where
--- Do you mind if I turn on the air-conditioner? ---___________. I feel a bit hot.