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.What we know about certain diseases are still not sufficient to prevent them from spreading easily among the population. A. What we know about B. are C. from spreading D....
Đọc tiếp
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.
What we know about certain diseases are still not sufficient to prevent them from spreading easily among the population.
A. What we know about
B. are
C. from spreading
D. among
Đáp án B.
Đổi are thành is.
Tạm dịch: Những gì chúng ta biết về một số bệnh vẫn chưa đủ để ngăn chúng lây lan dễ dàng trong nhân dân.