比较级句子：

1. She is taller than me.

2. He runs faster than me.

3. My books are newer than yours.

4. She sings better than her sister.

5. Our classroom is bigger than theirs.

最高级句子：

1. She is the tallest in our class.

2. He runs the fastest in our class.

3. This is the most expensive thing I have ever bought.

4. She is the most beautiful one in my class.

5. He is the strongest student in our school.