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) When the chemicals (B) inside a cell (C) no longer produce ions, the cell stops (D) to function.
A. When
B. inside
C. no longer
D. to function.
Đáp án : D
Stop Ving = dừng việc làm gì lại. Stop to V = dừng lại để làm việc gì khác