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Câu hỏi:
Trees not only bring nature to urban areas, but they also help clean the air by absorbing pollutants, ____ oxygen, ____ water, and grow food.
- A. providing - saving
- B. provide - save
- C. to provide - to save
- D. to provide - save
Lời giải tham khảo:
Đáp án đúng: A
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CÂU HỎI KHÁC
- Fossil fuels which are non-renewable pollute the air and cause air ___
- Recycling provides a method of reducing the amount of waste materials that gets to the landfills - thus ____ it less probable for environmental pollu
- If wastes are thrown____ , they can cause pollution in water, land and air.
- Trees not only bring nature to urban areas, but they also help clean the air by absorbing pollutants, ____ oxygen, ____ water, and grow food.
- Air pollution is such a serious_____ that it has been a direct factor in the of millions of people each year.
