Until he spoke I hadn’t realized he didn’t know anything about the subject.
Giải thích
Chọn B
45/51
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
Until he spoke I hadn’t realized he didn’t know anything about the subject.
If he didn’t speak, I wouldn’t realize he didn’t know anything about the subject.
If he hadn’t spoken, I wouldn’t have realized he didn’t know anything about the subject.
Unless he spoke I wouldn’t realize he didn’t know anything about the subject.
When he spoke I hadn’t realized he didn’t know anything about the subject
Chọn B