给老师留言是我们学生与老师沟通的重要方式之一，以下是一些简短的句子，可以用来给老师留言：

1. 谢谢您的教导！

Thank you for your guidance!

2. 我需要一些帮助，请问您有时间吗？

I need some help. Do you have time?

3. 我不能参加今天的课，请问有什么作业要交吗？

I can't attend today's class. Is there any homework to submit?

4. 我有一个问题，能否和您讨论一下？

I have a question. Can I discuss it with you?

5. 明天我会迟到，请您原谅。

I will be late tomorrow. Please forgive me.

6. 老师，您的课真的很有趣！

Teacher, your class is really interesting!

7. 谢谢您为我们做的一切，我们非常感激！

Thank you for everything you have done for us. We are very grateful!

8. 老师，您是我们的榜样！

Teacher, you are our role model!

9. 我会努力学习，争取取得更好的成绩。

I will work hard to achieve better results.

10. 老师，您的鼓励对我很重要，谢谢您！

Teacher, your encouragement is important to me. Thank you!