"Don't forget to hand in the paper by the deadline." Said the teacher
"Don't forget to hand in the paper by the deadline." Said the teacher (reminder)
=> The teacher _________________________________.
Đáp án: The teacher gave us a reminder that we had to hand in the paper by the deadline.
Giải thích: give sb a reminder: đưa cho ai lời nhắc nhở
Dịch: Giáo viên đã nhắc nhở chúng tôi rằng chúng tôi phải nộp bài trước thời hạn.