| 1 | We need to listen to the teacher's lecture attentively. | |
| 2 | When giving a lecture, pay attention to your pronunciation and intonation. | |
| 3 | If you listen to the teacher carefully, your grades will improve. | |
| 4 | The students took notes with pens on the teacher's key points. | |
| 5 | When giving a lecture, it is best to use some examples to help students better understand the content. |