这道题怎么写？

1. Is this (these) your eraser?
2. Those (that) are my brothers.
3. She(Her) isn’t Susan. Her name is Mary.
4. Lin Hai and Guo Peng are my friends (friend).
5. My mother’s brother is my uncle.
6. Helen isn"t my aunt. My aunt is Lucy.
7. Nina’s father and mother are her parents.
8. These are pens and those are pencils.
9. Mike Green's first name is Mike.
10. Please spell (拼写) your name.
11. Look at those cups (cup).
12. My mother's daughter is my sister .
13.Here are two photos(photo)of my family.
14. This is my aunt and she is my mother’s sister.
15.She（they）is a nice girl.