Choose the best words and complete the passage.(选择最恰当的单词完成短文)

     Everyone wants to be healthy. Then do you know how to1good health? You may say, having a balanced diet and doing exercise can help us. I agree with you. In fact, good sleep is also very 2 .

    Lots of people in the world have sleep problems. They can't sleep 3at night. The next day they are 4 tired to work well. They are unhappy and stressed out. Then they may have some other health problems.

    5can people sleep well at night? Here are some good ideas.

●Sleep in a quiet room.

●Do some exercise before going to bed. It'll make you sleepy(瞌睡的).

●Wash your feet in 6water before you go to bed.

●Have a glass of milk. It's pretty good for sleeping.

●Don't think about boring things.7to be relaxed.