----- Nội dung dịch tự động từ ảnh ----- ``` 14. If you want to lose weight, you should go on a diet. 15. He does not like to eat vegetables, so he does not get enough vitamins. 16. Phong eats lots of junk food, so he is putting on weight. 17. Last night I did not feel well, so I went to bed early. 18. I exercise every day because I want to stay healthy. 19. Judy did not go to school yesterday because she has a high fever. 20. I find doing morning exercise difficult, although it is good for my health. 21. I am afraid I will not come tomorrow, but I will be able to visit you next week. ```