句型转换。
1. That is my sister. (改为一般疑问句)
______ ______ ______ sister?
2. That is her brother. (改为否定句)
That ______ ______ brother.
3. This is her friend. (改为复数形式)
______ ______ her ______.
4. They are my father's sisters.(改为同义句)
They ______ my ______.
5.This is my grandmother and this is my grandfather.(改为同义句)
These ______ my ______.
