80. The sofa was such comfortable that I fell asleep. A B C D IV. ðọc kỹ 4 ñoạn văn sau và chọn phương án ñúng.
Question 81- 85
How can we keep our teeth healthỷ First, 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 waỵ Unfortunately, many
people wait until they have toothache before they see a dentist. Secondly, we should
brush our teeth with a toothbrush and flouride 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, vegetables and fresh
fruit. Chocolate, sweets, biscuits and cakes are bad, especially when we eat them
between meals. They are harmful because they stick to our teeth and cause decaỵ
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