Why are you always tired, do you know?
First, if we can't          well, we will be tired. But we are often too        .We can't finish our homework in the day and       .we have to do it at night. We go to bed       and we get up early in the morning for school or work. Most people need at least eight          sleep or more. If we sleep for only five or six hours a night, we will be tired.
Second, when we are ill, we will be tired. But sometimes we don't know we are ill. So if you are always tired, maybe you are not so    .You'd better go to see a      .
Third, maybe you eat       00d, like hamburgers, meat, chocolate or coffee. If you are ill and tired after eating some food, please don't eat it again. You can eat more when you are well.
At last, if the air around you isn't nice and clean, you will feel tired. So please     your windows often or go out fora walk, then you will feel        .

A．sleep B．study C．drink D．eat

A．busy B．free C．lazy D．angry

A．because B．if C．so D．although

A．early B．late C．quick D．quiet

A．days B．months C．hours D．minutes

A．ill B．nice C．bad D．healthy

A．movie B．friend C．teacher D．doctor

A．too much B．too many C．much too D．many too

A．tum B．open C．close D．keep

A．better B．best C．good D．Nice