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.
Manufacturers (A) may use food additives (B) for preserving, to color, or (C) to flavor, or to (D) fortify foods.
A. may use
B. for preserving
C. to flavor
D. fortify foods
B
B “for preserving” => “to preserve” để hòa hợp chủ vị trong câu