For thousands of years, man has created sweet-smelling substances from wood, herbs, and flowers7/50Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. For thousands of years, man has created sweet-smelling substances from wood, herbs, and flowers and using them for perfume or medicine. man sweet-smelling using them orGiải thíchĐáp án C Sửa using them -> used them