Đối với mỗi nhóm, hãy chọn câu đúng A hoặc B
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1. a. City children play less freely on the streets because of crowded traffic.

b. City children play more freely on the streets because of crowded traffic.

2. a. In the countryside, the life style is less faster than the life style in cities.

b. In the countryside, the life style is not so fast as the life style in cities.

3. a. Most people believe that country people live happier than city people.

b. Most people believe that country people live more happily than city people.

4. a. Farmers have to work harder in harvest time.

b. Farmers have to work more hardly in harvest time.

5. a. The starry sky at night in the countryside is more clearer and more fantastic than that in cities.

b. The starry sky at night in the countryside is clearer and more fantastic than that in cities.

6. a. The cost of living in cities is more high than in the countryside.

b. The cost of living in cities is higher than in the countryside.

7. a. Life in a small town is less exciting than life in a big city.

b. Life in a small town is not so exciting than life in a big city.