英语句型转换问题 初中阶段的~在线等速度

1:Are they jim's picture?(有Be动词把Be动词提前)
2:Yes,there are(肯定) No,there aren't(否定)
3:Is Kate's father a teacher?(有Be动词把Be动词提前)
4:There is a ten-year-old boy(用连接线换一种对年龄的表达)
有什么不对 提下

1.whose pictures are they？
2.肯定 yes，there are 否定 no，there aren’t
3.Is kate’s father a teacher？
4.The boy is at the age of ten

Whose pictures are they?
Yes, they are./No, they aren't.
Is Kate's father a teacher?
The boy is at the age of ten.

Whose pictures are they?
Yes,there are and No,there aren't.
Is Kate's father a teacher?
The boy is age ten.