Choose the correct sentences Ex1. A. More industry and automobiles is concentrated in urban areas that in rural areas. B. More industry and automobiles is concentrated in urban areas than in rural areas. C. More industry and automobiles are concentrated in urban areas that in rural areas. D. More industry and automobiles are concentrated in urban areas than in rural areas. Ex2. A. City children play less freely on the steets because of crowded traffic. B. City children play freelier on the streets becase of crowded traffic. C. City children play free on the streets because of crowded traffic. D. City childrn play more freely on the streets because of crowded traffic. Ex3. A, The starry sky at night in the countryside is cleaner and fantastic than that in cities. B. The starry sky at night in the countryside is more clear and fantastic than that in cities. C. The starry sky at night in the countryside is more clearer and more fantastic than that in cities. D. The starry sky at night in the countryside is clearer and more fantastic than that in the cities. Ex4. A. In the countryside, the life style is not so fast as the life style in cities. B. In the countryside, the life style is more faster than the life in cities. C. In the countryside, the life style is less faster than the life style in cities. D. In the countryside, the life is faster than the life style in cities. MỘT TICK CHO BẠN NÒA TRẢ LỜI.