Mark the letter A, B, Cor D to indicate the underlined part that needs correction in each of the following questions It was not until his father threatened to punish him did he told him the

Đáp án: C

Giải thích: cấu trúc nhấn mạnh với not until: It is/was + not until + clause/Adv of time + that + clause sửa did thành that.

Dịch nghĩa: Chỉ đến khi bố nó dọa sẽ phạt nó thì nó mới nói sự thật