1. She looked sad and tired.
2. I have a sad news for you.
3. We were all sad at her going.
4. We are very sad to hear that you are leaving.
5. Separation from his friends made him sad.
6. When I heard the news of his death, I felt extremely sad.
7. It was sad to see them go.
8. It's a sad world where there is so much suffering.
9. The students were sad to hear that their English teacher was resigning.
10. I'm sad because my favorite pet died.
这些例句涵盖了“sad”这个词在不同情境下的用法，包括描述人的情感状态、听到坏消息、与亲人朋友分离、看到他人离去、对世界的感受等。希望这些例句能帮助六年级的学生更好地理解和运用“sad”这个词。
