1. The teacher is our good friend.

2. Who is your English teacher？

3. I respect my teacher very much.

4. Being a good teacher needs a lot of knowledge.

5. Next week, your math teacher will be changed another one.

6. My teacher says, "You tell your parents that they should come to school next Monday."

7. Mom, this is my math teacher.

8. Our English teacher is a beautiful woman.

这些句子涵盖了不同的场景和表达方式，可以帮助你更好地理解和运用“teacher”这个单词。