Giải hộ
----- Nội dung ảnh -----
II. Traffic jams and pollution may occur when there are too many cars on the roads, making it difficult for people to move around quickly. To solve this issue, two solutions are suggested:

1. Expanding public transportation use
2. Encouraging the use of green spaces because there is too much vehicle congestion in cities.

In conclusion, by using public transportation, we can reduce pollution.

A. The Benefits of Public Transportation
B. The Importance of Green Spaces

5. What does the word "this" refer to in the context of the passage?
A. Traffic congestion
B. Air quality

3. What is the opposite of "congestion," as used in the passage?
A. Density
B. Clarity

4. What is a synonym for "pollution" in the passage?
A. Cleanliness
B. Contamination

What is used in the passage?
A. Dispersal
B. Freshness
C. Compression
D. Using public transportation
D. Building more factories
D. Solutions for City Traffic and Pollution
D. The Role of Factories in Pollution

C. Planting trees