- How can we keep our teeth healthy? Firstly, we ought to visit our dentist twice a year. - He can fill the small holes in our teeth before they destroy the teeth. - He can examine our teeth to check that they are growing in the right way. - Secondly, we should brush our teeth with a toothbrush and fluoride toothpaste at least twice a day-once after breakfast and once before we go to bed. - We can also use wooden toothpicks to clean between our teeth after a meal. - Thirdly, we should eat food that is good for our teeth and our body: milk , cheese, fish, brown bread , potatoes, red rice, raw vegetables and fresh fruit. - They are harmful because they stick to our teeth and cause decay.. - When food and germs collect in a small crack , our teeth…………... - Sweets are harmful because they may make our teeth A. - 17.When Newton was 22 years old, he began…….the theory of gravitation. - He……….the gardening for hours.. - one of the larger 21.My brother stopped………..two years ago.. - 22.He is ……..to lift his weight. - 27.The Context. - will treat 42.The driver was badly. - 43.My little sister is very good. - 44.My father is a. - Business people in large urban areas are (53) ……….to wear suits or dresses. - 59.A.the best B
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