10. The baseballs are under the sofa. (画线提问)　 _______ ________ _______ ______ .

9. Her backpack is on the bed. (画线提问)　 ________ ________ her backpack?

8. His keys are on the sofa. (改为一般疑问句并作简短肯定、否定回答)

　　 ________ ________ keys on the sofa? Yes,______ ______ .　 _______, they _______.

7. She is my aunt. (改为一般疑问句)　 ________ she ________ aunt?

6. These are your brothers. (改为否定句)　 ________ ________ your brothers.

5. His brother is a worker. (改为一般疑问句)　 ________ ________ brother a worker ?

4. These are his brothers. (改为单数形式)　 ________ ________ his ________ .

3. Those are her cousins. (改为单数形式)　 ________ ________ her ________ .

2. This is an egg. (改为复数形式)　　 ________ ________ eggs.

1. That's my sister. (改为复数形式)　　 ________ are my ________ .