1. Stand up, or you go out.
=> If you don't stand up, you will be punished.
2. Go to bed or you be tired.
=> If you don't go to sleep, you will be tired.
3. We pass the exam, or we fail the exam.
=> If we don't pass the exam, we will fail.
4. Be quiet, or the children will be awake.
=> If you do not keep quiet, the children will be awakened.
5. Listen carefully to the teacher, or you will not understand the lesson.
=> If you don't listen to the lecture, you won't understand the lesson.
`***` Cấu trúc:
`=>` If + hiện tại đơn, + tương lai đơn