She read the instructions to find out how_______the computer.

_______ you sit in front of the computer all day while working, you’d better take exercise for at least an hour every day

Nowadays signs prohibiting smokinga common sight in restaurants, tea houses and shopping malls．

Mom, Bill is coming to have dinner with us tonight.—-Ok. Let’s give him ___________to eat.

Is Paul playing basketball for his school?—Well,he ____.But he has given it up and switched to playing volleyball.