Bob has changed a lot!—That’s true. That fact is that he’s___________ five kilos since he gave up smoking.

you been teaching here sincegraduation—No, I _____ on a farm for five years

Drivers must _______seat belts while their cars are running on the road.

It’sgood feeling for people to admire the Shanghai World Expo that givesthempleasure

The table _______ 15 by 30 feet, and I have to find another one which may be smaller but _______longer