Professor Tate finished his speech and then we left
Question: Professor Tate finished his speech and then we left.
We _______________________ until Professor Tate finished his speech. (leave)
Question: Professor Tate finished his speech and then we left.
We _______________________ until Professor Tate finished his speech. (leave)
Đáp án: didn’t leave
Giải thích: until + mệnh đề: cho đến tận khi...
Dịch: Chúng tôi không rời đi cho đến tận khi giáo sư Tate hoàn thành bài phát biểu.