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hieudupi5
2 năm trước
Mẫu số của một phân số (không chắc chắn là phân số tối giản) lớn hơn tử số của nó 9 9 đơn vị. Nếu tăng cả tử số và mẫu số thêm 2 2 đơn vị thì được phân số mới bằng \frac{1}{2} 2 1 ​ . Phân số ban đầu là
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1. You should eat a lot of fruits and vegetables because they______ vitamin A, which is good for the eyes. A. run B. take C. provide D. get 2. The health ______ ______ from that diet expert is that you should eat less junk food and count your calories if you are becoming fat. A. advices B. ideas C. tip D. tips 3. The seafood I ate this morning makes me feel ______ all over. A. itchy B. weak C. running D. well 4. If you want to be fit, stay outdoors more and do more activities. A. physics B. physic C. physical D. physically 5. Do more exercise______ eat more fruit and vegetables. A. and B. so C. but D. although 6. After working in computer for long hours, you should______ your eyes and relax. A. wake B. rest C. sleep D. sleep in 7. Eat less high-fat foods to keep you from ______ fat. A. gaining B. reducing C. getting D. rising 8. We should follow the advice from doctors and health ______ in order to keep fit. A. managers B. experts C. people D. workers 9. Have a healthy and you can enjoy your life. A. lifeline B. lively C. lives D. lifestyle 10. They go______ outside even when it’s cold. A. swims B. swiming C. swimming D. swam 11. Rob eats a lot of fast food and he ______ on a lot of weight. A. spends B. brings C. takes D. puts 12. We need to spend less time ______ computer games. A. playing B. to playing C. play D. to play 13. To prevent ______ , you should eat a lot of garlic and keep your body warm. A. cold B. mumps C. flu D. headache

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