1. The sun rises.

2. She left.

3. He came.

4. We are eating.

5. The man died.

6. The boy smiled.

7. The birds are flying.

8. I love watching movies.

9. They study hard for their exams.

10. He likes singing.

这些句子都遵循了主谓结构的基本形式，即主语（Subject）+ 谓语（Predicate），用来表达一个完整的意思。主语通常指句子中的主要行动者或事物，谓语则表达了主语的动作、状态或特征。