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Tham khảo :
1. Write about a type of pollution in your area số 1Nowadays, pollution is a popular term with everyone in the world and air pollution is one type of pollution. The definition of air pollution is one such form that refers to the contamination of the air, irrespective of indoors or outside. A physical, biological or chemical alteration to the air in the atmosphere can be termed as pollution. There are some main reasons which cause air contamination such as burning of fossil fuels, agricultural activities, exhaust from factories and industries, mining operations, and indoor air pollution. Air pollution always has bad effects on our life. Harmful gases, dust, and smoke enter into the atmosphere and make it difficult for plants, animals and humans to survive. We also can see some examples of the result of air contamination which occurs around us as global warming, acid rain, and depletion of ozone layer. The effects of air pollution are alarming, so governments over the world should have suitable policies of protecting the environment, especially air quality to create a clean world for our generation in the future.
1. They make these artificial flowers by silk. (maybe)
2. When did they manufacture this radio?
3. Please wait here while they are examining your luggage.
4. For a long time, people believed the earth was flat.
5. People say that apples are good for our health.
6. What have they done to help the poor in this city?
7. Someone must have stolen the jewelry while she was out.
Đáp án:A
Giải thích: so + mệnh đề”: nên, vì thế
Dịch: Trận báo đang lớn dần, vì thế bạn đừng ra ngoài.
Đáp án C
Giải thích: a serious health problem: một vấn đề sức khoẻ nghiêm trọng.
Dịch: Chúng tôi nghĩ béo phì là 1 vấn đề sức khoẻ nghiêm trọng.