I was excited. In negative:
I wasn´t excited
The children are happy. In the past:
The children were happy
There ...... some orange juice in the glass
was
A rhino is a very ...... animal.
heavy
We need to clean up the house so/because it is dirty
because
Dinosaurs were ..... animals
huge
Ants are ...... animals
tiny
He is a doctor. In the past:
He was a doctor
They were at school. In negative:
They weren´t at school
What animal is this?
It´s an octopus
There ..... a lot of kids in the park
were
You are my friend. In the past:
You were my friend
I was tired, so/but I went to bed
so
What animal is this?
It´s a turtle
There ...... a pen on the table
was
My dad is reading a book. In the past:
My dad was reading a book
A cheetah is a very ..... animal
quick
My brothers are playing. In the past:
My brothers were playing
Were there any books on the table?
No, there weren´t
Was there any milk?
Yes, there was
There ..... two dogs on the sofa
were