Đọc đoạn văn sau và chọn câu trả lời đúng cho các câu hỏi.
Every day on radio, on TV, and in the newspaper, we hear, see or read about many problems in the world, Because of this, we must think about these problems. We must also try to find a solution for them. Our lives depend on this. For example, there are pollution problems.
Air pollution is the first kind. It mostly comes from fumes released from motorbikes, cars, airplanes, trains and poisonous gases emitted from factories. Also, waste is dumped anywhere, even in the city where many people are living. The factory owners must know that people don’t want to live in pollution that is dangerous for their health, nobody in this world want to breathe dirty air. This problem is growing more difficult every day. We must find a good solution that makes the world a better place to live.
1. _________ helps us know about many problems in the world.
A. Transportation B. Media C. Pollution D. People
2. What causes the air pollution?
A. fumes from vehicles. B. poisonous gases from factories.
C. waste from everywhere D. All are correct
3. What does the word “them” in the passage refer to?
A. newspapers B. factories C. problems D. people
4. The word “dirty” in line 7 is can be best replaced by ________.
A. polluted B. pure C. clean D. harmless
