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:

It is essential that cancer is diagnosed and treated as early as possible in order to assure a successful cure.

 

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

ATNETWORK
ADMICRO
YOMEDIA
ZUNIA9