IT IS SO AN INTERESTING BOOK THAT I C A N ’ T S T OP REA D I N G.A...

80. It is so an interesting book that I c a n ’ t s t op rea d i n g.A B C D IV. ðọc kỹ 4 ñoạn văn sau và chọn phương án ñúng. Question 81-85How can we keep our teeth healthy? First, we ought to visit our dentist twice ayear. He can fill the small holes in our teeth before they destroy the teeth. He can examine ourteeth to check that they are growing in the right way. Unfortunately, many people wait until theyhave toothache before they see a dentist. Secondly, we should brush our teeth with a toothbrush andflouride toothpaste at least twice a day, once after breakfast and once before we go to bed. We canalso use wooden toothpicks to clean between our teeth after a meal. Thirdly, we should eat foodthat is good for our teeth and our body: milk, cheese, fish, brown bread, potatoes, red rice,vegetables and fresh fruit. Chocolate, sweets, biscuits and cakes are bad, especially when weeat them between meals. They are harmful because they stick to our teeth and cause decay.