.Your mouth will be opened and your teeth will be shown when you laugh. However, the h(1)

.  Your mouth will be opened and your teeth will be shown when you laugh. However, the h    (1)     those teeth are, the happier you look. Strong, healthy teeth can help you eat the right food to help you g    (2)    . They also help you speak clearly. But do you know how to take care of your teeth? These should be f    (3)    .
Brush your teeth twice a day after breakfast and before bedtime. If you can, brush after lunch or after eating sweet cakes. T    (4)     your time while brushing. Spend at least 3 minutes each time you brush. Brush all of your teeth, not just the f    (5)     ones. Spend some time on the teeth along the s    (6)     and in the back.  
Be sure the t    (7)     you use is soft and should be changed every three months or even less.
Learn how to floss(用牙线清理) your teeth, which is a very important way to keep them healthy. It feels s when you do it at first, but soon you’ll get used to doing it. The floss cleans up food that’s h    (8)     between your teeth.
Brushing and flossing keep your teeth healthy. You also need to c    (9)     about what you eat and drink. Eat lots of fruits and vegetables and drink water i    (10)     of drinks.1. healthier   2. grow        3. followed    4. Take       5. front