"then"在英语中可以用来连接两个相关的思想或事件，表示时间顺序、条件或结果。以下是一些使用"then"的例句：

1. We had dinner together, and then went to the concert.

2. Take the first right, then the second left.

3. I will finish my homework, then I will watch TV.

4. First, you need to turn on the computer, then you can start working.

5. If it rains tomorrow, then we will have to cancel the picnic.

6. She studied hard, then she passed the exam with flying colors.

7. I will make a sandwich, then I will have a nap.

8. It was just then that I chanced to look round.

9. He stood, for a moment, staring defiantly back at her, then took to his heels.

10. If you don’t study, then you won’t pass the exam.

11. We can go to the beach first, and then grab some lunch.

12. If it’s raining this afternoon, then we’ll have to cancel the picnic.

这些例句展示了"then"在不同语境下的用法，包括表示时间顺序、条件句和结果等。希望这些例子能帮助你更好地理解和使用"then"。