'To be' forms in present simple - am/is/are

You need to choose the correct forms to complete these sentences.

Exercises:
she a good doctor?
They
my best friends.
Today
a very sunny day.
I
not a morning person.
John tall and slim?
They
happy together.
The cat
on the chair.
The water
cold.
you my best friend?
We
not in the park.