I ____ a student
I am a student / I'm a student
You _____ in the class.
You are in the class / You're in the class.
She ___ very pretty.
She is very pretty / She's very pretty
He ___ waiting for a train.
He is waiting for a train / he's waiting for a train
It ___ the tallest mountain in the world.
It is the tallest mountain the world / It's the tallest mountain the world
We ___ a big family.
We are a big family / we're a big family
You ___ running.
You are running / you're running
My mother ___ wearing a pink sweater.
My mother is wearing a pink sweater / My mother's wearing a pink sweater.
Paul ___ cooking pasta.
Paul is cooking pasta / Paul's cooking pasta.
Robert and I ___ playing football.
Robert and I are playing football.
My parents ___ travelling to New York.
My parents are travelling to New York.
They ___ eating sandwiches.
They are eating sandwiches / they're eating sandwiches,
Japanese people ___ eating sushi.
Japanese people are eating sushi.
Bert, what ___ you doing?
Bert, what are you doing?
