Mark the letter A, B, C, or D on your answer sheet to indicate the undelined 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 perfumes or medicine.

 

Suy nghĩ và trả lời câu hỏi trước khi xem đáp án

ADSENSE
ADMICRO
YOMEDIA
ZUNIA9