4. The phone is out of (serve) .

3. Those (Europe) appearances are totally different.

2. How brave she is to (fighter) , against cancer.

1. Cai Lun and Zhang Heng are great (invent) in ancient China.

10. (表面) of objects usually feel different.

9. I have never dived in the (太平洋的) Ocean.

8. Which (章节) of the long novel is your grandma reading today?

7. Our salary has (增力口) a lot during the last ten years.

6. (实验室) on the ninth floor are for chemistry classes.

5. I am saving money for my children's (更进一步的) study abroad.