00 15 53 Thí sinh: Nông Thị Mai Hoa Toàn màn hình Thoá Câu 18: Read the passage.Then answer questions. How can we keep our teeth healthy? First, we should visit our dentist twice a year. He can examine our teeth and fill the small holes in our teeth before they destroy the teeth. Secondly, we should brush our teeth at least twice a day - once after breakfast and once before we go to bed. Thirdly, we should eat food that is good for our teeth and our body such as milk, cheese, fish, potatoes, red rice, raw vegetavles and fresh fruit. Chocolate, sweets, biscuits and cakes are harmful because they stick to our teeth and cause decay. Questions. 1. How often should we go to the dentist? 2. What does a dentist do with our teeth? 3. When should we brush our teeth? 4. What foot are good for our teeth? Bài làm của bạn: 1 Bảo lôi 18/03/22 14:36 giúp mk nhanh nha, cảm ơn rất nhiều