题目内容：

阅读下面短文，用方框中所给单词的适当形式填空，使短文意思通顺、正确、连贯。

Everyone wants to have healthy teeth. When you laugh, you will open your mouth and __1______ your teeth. The healthier your teeth are, the happier you feel. Why is that?

It’s because your teeth are important in many ways. You can take .___2_____ of your teeth by doing like these:

Brush your teeth ______3___ a day, after getting up and before going to bed. And brush all of your teeth, not just the ____4____ ones. Spend at least three _____5____ each time you brush. Be sure your toothbrush is _______6__. You should use your toothbrush for three months and then ____7____ it.

Clean your teeth with dental floss(牙线). It feels ____8___ when you do it for the first time, but soon you’ll get used to do that. Brushing __9____ your teeth healthy. You also need to care about what you eat and drink. Eat a lot of fruits and vegetables and drink water _____10___of other drinks.

Do you want have white and healthy teeth? Please brush your teeth!