This is my book. There is a nice cat in the tree

This is my book. There is a nice cat in the tree

These are my books.
There are nice cats in the tree.
That is a ruler.

This is a beautiful picture
_______ ______ _______________ .
He used a pen to draw the picture
He_______ the picture________ a pen.
Mr.Zhang Is a tall man with long black hair
_______ does Mr.Zhang___________ ?
Walt Disney founded it in 1954
______ ______ wait dinney_________ it?
Nobody knows the reason
________ ________ know the reason?

There are some beautiful pictures.
He drew a picture by a pen.
How does Mr.Zhang look?
When did Walt Disney found it?
Does anybody know the reason?

What is this is a picture in the plural

these are pictures