Đề bài : For each group , choose the correcr sentences A or B 1 A. More industry and automobiles are concentrated in urban areas that in rural areas. B. More industry and automobiles are concentrated in urban areas than in rural areas. 2 A. Air pollution in cities is more worse than in the countryside B. Air pollution in cities is worse than in the countryside 3 A. The air in the countryside is fresher than in cities B. The air in the countryside is more fresh than in cities 4. A. City children play less freely on the steets because of crowded traffic. B. City childrn play more freely on the streets because of crowded traffic. 5. 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. 6. A. Most people that country people live happier than city people B. Most people that country people live more happily than city people 7. A. Farmer have to work harder in harvest time B. Farmer have to work more hardly in harvest time 8. 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 the cities. 9. A. The cost of living in cities is more high than in the countryside B. The cost of living in cities is more higher than in the countryside 10. A. Life in a small town is less exciting than life in the big city B. Life in a small town is not so exciting than life in the big city Chọn A và B xong giải thích tại sao lại chọn đáp án đó Giải thích kiểu nào dễ hiểu nha tại tôi cũng không hiểu tiếng anh cho lắm