| 1 | At the opening ceremony, the principal gave a speech to the new students. | |
| 2 | This school policy was proposed by the principal. | |
| 3 | He is the principal of our school, very responsible. | |
| 4 | The principal of this school pays great attention to students' quality education. | |
| 5 | She became the new principal of the school and will start her new job. |