---Is your father a teacher? ---Well, he ______. But now he works in a bank.

—Jack, what do you usually do after supper? --Well, I____ stay at home and watch TV, but now I ____ taking a walk.'

— The number of cars           growing larger and larger in Beijing.— But the traffic problem is           than it used to be.

 --- I feel tired and sleepy. --- Why not stop ______?

Teachers often asked us     make any noise in class.