Read the following passage and answer the questions----- Nội dung dịch tự động từ ảnh ----- VII. Read the following passage and answer the questions. KEEPING OUR TEETH HEALTHY How can we keep our teeth healthy? 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 way. Unfortunately, many people wait until they have toothache before they see a dentist. 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. 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 decay. 1. How often should we visit the dentist? 2. How often should we clean your teeth? 3. Why do we use toothpicks? 4. Write down three kinds of food that is good for your teeth. S. Write down three kinds of food that is bad for your teeth., VIII. Give the correct tense/form of the verb in the brackets. 1. Listen to those people! What language they (speak)? 2. I hope he (finish) his homework before we (get) back. 3. If we (not economize) on electricity, there will be power cuts. 4. Phong likes (play) football on the weekend. 5. Mr. Ninh (not work) in the office tomorrow. 6. Bob (not like) to listen to rock music. 7. It's rainy. You should (take) an umbrella. 8. Why you (look) at me like that? What's the matter? 9. Take these pills and you (feel) better then, Ba 10. Why you (make) so much noise in your room, Lan? We (rehearse) a play for the school anniversary celebrations. 11. Last year I (visit) Hue. 12.1 (visit) Hue four times. 13. They (buy) a new house a year ago. 14. He (sell) a car two months ago. 15. He (not/ collect) stamps when he was 5. 16. They(be) to that supermarket three times. 17.you(watch) "Pride and Prejudice" on TV yesterday? 18. She wants to take part in (go) camping. |