C 阅读下面短文,根据语境、音标或所给的提示,在每个空格内填入一个恰当的词 , 要求所填的词意义准确、形式正确,使短文意思完整、行文连贯。 Did you go to see a dentist before? Do you know how to take care — 1 — your teeth? It’s necessary to have — 2 — (health) teeth. They can help you speak clearly ( 清楚地 ) and make you look good . But many children don’t care about their teeth. They have a toothache sometimes. Their bad teeth — 3 — / È i:vn / cause other health problems. Want to have healthy teeth? Follow my — 4 — (suggest) : It’s not right to brush your teeth only once a day. Brush your teeth at once after each — 5 — / mi:l / . Food debris ( 残渣 ) can make your teeth ill slowly. And you brush all of your teeth, not just — 6 — front ones. Spend some time on the teeth along the sides and in the back. Take your time — 7 — you are brushing. Spend at least three — 8 — ( minute ) each time you brush. Be sure your toothbrush is soft ( 柔软的 ) and change a new toothbrush every three months. Ask the dentist to check your teeth once a year. Also, you must have healthy — 9 — (eat) habits . Eat lots of fruits and vegetables and drink water instead of drinks. In fact, most know the knowledge ( 知识 ) well. Want to have white and healthy teeth? 10 / f ɔ : (r) s / yourself to do these.