1. I'd like some milk, please.

2. Can I have some milk？

3. She's gone for some milk.

4. Is this milk fresh？

5. The milk had gone sour.

6. We're out of milk.

7. I am sorry that I forgot to buy the milk.

8. Do you take milk in your tea？

这些例句涵盖了"milk"作为名词和动词的不同用法，适合三年级学生理解和学习。