( Do/ Does) they have a tent? Yes they do.
Do
Horses (can/ are/doesn't) run fast.
can
He (has/ have) short hair.
has
He has a pen. ____ pen is red.
His
Birds ___ fly.
can
Kangaroos ( can't/ aren't) fly.
can't
They have green eyes. _____ eyes are pretty.
Their
___ ____ are on the desk.
The books
Tom ( dont'/ doesn't) have a car. He has a bike.
doesn't
It is a ____ ballon. It isn't red.
blue