短文填空。(共10小题，每小题1分，满分10分)
阅读下面短文，根据中文、首字母、音标和语境的提示，在每个空格内填入一个适当的单词，要求所填的单词意义准确，拼写正确。
When you laugh, you will       (['əʊp(ə)n] )your mouth and your teeth. The healthier those teeth are, the happier you look. Why is that?
It’s because your teeth are important in many ways. If you take care of them, they’ll help to take care of you.       (强健), healthy teeth help you eat the right food to help you grow. They also help you speak clearly.
You can take care of your teeth by doing like these:
Brush your teeth       ([twaɪs]) a day after breakfast and before bedtime. If you can, brush after     lunch or after eating sweet cakes.
Brush all of your teeth, not just the front ones. Spend some time on the teeth along the sides and in the back.
Take your time while brushing. Spend at       (至少) three minutes each time.
Be sure your toothbrush is soft. Ask your parent to help you get a new toothbrush e     three month.
Learn how to floss(用牙线清理) your teeth, which is a very important way to keep them healthy. It feels strange when you do it at first, but soon you’ll get u   to doing it. The floss gets rid of food that’s hidden between your teeth.
Brushing and flossing    your teeth healthy. You also need to care about what you eat and drink. Eat m fruits and vegetables and drink water     of (代替) drinks.