Mark 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.

A cure for the common cold, causing by a virus, has not been found.

 

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

ATNETWORK
ADMICRO
YOMEDIA
ZUNIA9