Mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the following questions. Question 7. I wonder who live ________ , country folk or city people? A: happilier B: happier C: more happier D: more happily 4 choose the correct sentence A, B, C or D. 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.