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have played
Were - was
enjoys collecting - has had
goes - has been
is said to be
12. In spite of feeling tired, the man tried to finish the work.
13.She swims very well.
chủ ngữ they thì bỏ cũng được không bỏ cũng không sao =))
1 shortage
2 convincing
3 outnumber
4 normally
5 sensitive
6 Adaptation
7 certainty
2. shortage
4. inconvincible
5. outnumber
7. normality
8. sensible
9. adaption
10. certainty
1 He was born on February 11th, 1847
2 No, he didn't
3 He sold vegetables, candy, and newspaper on train
4 They are the photograph and the light bulb
5 He set up his lab in his parents' basement at age 10
Chào em, em tham khảo nhé!
1. Air pollution is one of the most serious types of pollution.
2. Air pollution occurs when the air contains gases, dust, fumes in harmful amounts which are harmful to man, vegetation, and animals.
3. Air pollution can have many different causes. The major source of air pollution is industrial waste from factories.
4. The second is the exhaust of cars, motor vehicles, and planes.
5. Air pollution can have dramatic effects. It will cause various dangerous diseases, death to human, damage and other living organisms such as animals and food crops, or the natural environment and the buildings look dirty.
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9.
Jane says she was at her's uncle house the previous night.
Jane said she had been at her's uncle house the previous night.
10.
John says his father is an engineer
John said his father was an engineer