Everyone of us _____ it’s important _____aseat belt in the car.

The population of China ________ 1.3 billion. And it is becoming _________.

Does he go to bed at 9:00—Yes, he _______.

. Smiths was busy writing a story, only ______ once in a while to smoke a cigarette.

The famous actor keeps fit and athletic by __________ at the gym for an hour every morning.