Linda is more careful than Elena. (4 Điểm) A. Elena is not as careful as Linda. B. Linda isn’t as careful as Elena. C. Linda is as careful as Elena. D. Linda is not as careful than Elena Tùy chọn 2 29.I find collecting stamps interesting. (4 Điểm) A. I am interested in collecting stamps. B. I am interested on collecting stamps. C. I am interesting in collecting stamps. D. I am interesting on collecting stamps. Tùy chọn 2 30.It takes him 3 hours to drive to his hometown. (4 Điểm) A. He spends 3 hours driving to his hometown B. He spends 3 hours to drive to his hometown. C. He spent 3 hours driving to his hometown. D. He spent 3 hours to drive to his hometown. Tùy chọn 2 31.This supermarket isn’t as expensive as the one across the street. (4 Điểm) A. This supermarket isn’t more expensive than the one across the street. B. This supermarket is more expensive than the one across the street. C. This supermarket is less expensive than the one across the street. D. This supermarket is as expensive as the one across the street.