tablet computers like Apple’s iPad just before bed, a research says recently, can lead to poor night’s sleep.
You ______wash your hands before meals.
Will you ______the light? It’s dark in the room.
My name is Zhang Mingjian. You may ______me Zhang Mingjian or Mr Zhang.
There is going to ______a game in our school this afternoon.
You’d better______smoking. It’s bad for your health.