The students are doing the cleaning in their classroom. Some are cleaning the windows and the doors, _______ are sweeping the floor.
Will you please _______ the TV? I want to see the Animal World.
They didn’t go to bed ________ they finished their homework.
Everyone in China tried ______ something for the Beijing Olympic Games.
It’s hard to ________ this kind of plant. You have to water it every day.
I don’t think fast food is good for our health, so I _______ go to MacDonald.