1) is it an apple?-Yes, it is.
2) Is there an apple in the box?-Yes, there is.
3) Are the pictures funny?-Yes, they are.
4) Are there any funny pictures in the box-Yes,there are.
5) Have you got any funny pictures?-Yes, I have.
1.
They'll
2.
There's
3.
It's
4.
They're
5.
There're