1. They 've decided to buy that car because

it's very cheap.

2. Put on your warm coat because 

the weather is very cold.

3. We like her because 

she is kind and friendly.

4. Let's help the street children because 

their life are so difficult.

5. Because she loves her students, 

the students study very well.

Mấy câu này bạn bấm máy tính là ra thui

1. Tom will never do anything if you don't tell him what to do.

=> Unless you tell Tom what to do, he will never do anything.

2. If it doesn't rain soon, millions of pounds' worth of crops will be lost.

=> Unless it rain soon, millions of pound's worth of crops will be lost.

3. Unless scientists get energy from the wind and the sun, fossil fuel will be used up.

=> If scientist get energy from the wind and the sun, fossil fuel will be used up.

4. Be careful when eating or you'll have a stomachache.

=> If you don't be carefull when eating, you'll have a stomachache.

5. Study harder and he will be a good student.

=> If he study harder, he will be a good student.

6. If he doesn't do enough exercises, he will have to leave class.

=> Unless he do enough exercises, he will have to leave class.

7. Eat less and do more exercise or he will get fatter.

=> If he eat less and do more exercise, he won't get fatter.

8. Unless we plant more trees along the beach, there will be more floods.

=> If we plant more trees along the beach, there will be less floods.

Nói thật với bạn là mình đã khóc khi đọc bài văn này. Cám ơn bạn đã gửi cho mình