13. We must obtain essential fatty acids or vitamins through diets. Our body cannot make them. ( combine  two sentences to make a compound sentence)

-> We must obtain essential fatty acids or vitamins which our body cannot make through diets.

Our surrounding environment is so polluted that we should follow specific approaches to tackle this problem. To begin with, each of us should use water wisely. That can simply be the instant repair of leaky faucets and pipes because a dripping faucet can waste as much as 5 liters a month. Besides, using the shower instead of taking a bath can save up 50% of the water consumed. Plus, responsible disposal of waste should be put into practice in every household. To be more precise, organic trash and scrap metal are to be classified and discarded in different bins. Moreover, it is advisable to reduce our electricity consumption. By turning off the light when going out of the room or using energy-saving devices, we can save not only our money but our environment as well. To sum up, the concerted effort from each individual in saving the environment will yield the best results.

Nowadays, the health is important because if we have a good health, we can make any things => everything in our life. However, it isn't really easy to have a good health. For me, I have some ideas to keep a good healthy. Firstly, if we usually do exercise, we will be strongly => strong. Doing exercise is good because it helps our body to => X relax. So, we are comfortable to go to school or go to work. Besides, it also helps us avoid illness. For exam => example, when we do exercise in the morning, we can breathe fresh air. Secondly, we eat many => much vegetables which help us to live in lifelong. Green vegetable => vegetables contain many types of vitamins such as vitamin A, vitamin B so on. Besides, it also supports a lot of fibers which reduces cholesterol in blood.

In conclusion, there are many of => X methods to keep a good health. For me, doing exercise and eating a lot of vegetables are the most important because they bring many benefits for health. I think we have to => should make it everyday to have a good health.

Nowadays, the health is important because if we have a good health, we can make any things in our life. However, it isn't really easy to have a good health. For me, I have some ideas to keep good health. Firstly, if we usually do exercise, we will be strong. Doing exercise is good because it helps our body to relax. So, we are comfortable going to school or go to work. Besides, it also helps us avoid illness. For the exam, when we do exercise in the morning, we can breathe fresh air. Secondly, we eat many vegetables which help us to live in lifelong. Green vegetables contain many types of vitamins such as vitamin A, vitamin B so on. Besides, it also supports a lot of fibers which reduces cholesterol in the blood.

In conclusion, there are many of methods to keep a good health. For me, doing exercise and eating a lot of vegetables are the most important because they bring many benefits for health. I think we have to make it every day to have a good health. 
Phần in đậm là thêm hoặc thay đổi nhá.

Being a volunteer is one of the best things you can do with your life. It's a great way to help other people. It's also very satisfying to know that you are not wasting your time and are helping people who need help. Many of us could and should be out there doing voluntary activities of some kind. So many volunteer organizations need extra hands. It is easy. Just pick up the phone and offer your services. I think too many of us settle into a lazy lifestyle. We just want to come home and watch TV. Life is much more interesting when you're a volunteer. I've found it opens your eyes to how some people live. It's sometimes sad to see how the government lets people down, but at least I'm doing my bit

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11. We have to work hard ______

A. because we are forced to

B. to make our material life better

C. to make ourseves purposeless

D. all are correct

1. Beside money,______________

A. we can get many other benefits from work

B. we can get some salary from work

C. we sometimes feel very meaningless

D. we can not contribute anything to our country
14. what motivates us to work harder?.________

A. Good job

B. Good pay

C Good way

D. Good skills
15. Without working, one’s life is_______

A. better

B. more confident

C. self-reliant

D.meaningless