1. 句型转换

1. （1） This is a picture of his family.  (改为一般疑问句)

   a picture of his family？

3. （2） Those are his good friends.  (改为否定句)

   his good friends.

5. （3） These are their cousins.   (改为一般疑问句, 并作肯定回答)

   — their cousins？

   —Yes, .

7. （4） That is Jack's father. (对划线部分提问)
   

   that?

9. （5） his, on, right, the, mum's, parents, are (?) (连词成句)