Listening Quiz: Đánh Giá Chất Lượng Không Khí Cho Vùng Phát Thải Thấp – Medium Level

1. What is the main purpose of David’s report?
2. By how much did the low emission zone reduce pollution last year?
3. Which pollutants showed the biggest drops?
4. What did David say about traffic flow and delays?
5. What can be inferred about the residents’ attitude toward the low emission zone?

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