Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part that needs correction in each of the following questions.
It was not until she could read and write when she was allowed to use smartphone.
A. not until
B. when
C. allowed
D. use
It was not until she could read and write when she was allowed to use smartphone.
A. not until
B. when
C. allowed
D. use
Đổi when thành that
Cấu trúc: It was not until … that + S-V.
Cấu trúc: It was not until … that + S-V.
Đáp án B.