My friend Tom comes from Canada and _______ is a tall boy with blue eyes.

Teenagers _______ allowed to drive a car. — That’s true. It’s too dangerous for them to drive a car.

I won’t go to the concert because I________ my ticket.

Follow your teacher’s advice, _______ you’ll make great progress in your English.

Who taught ________ to write the computer program?—Nobody. She learned it by __________.