---Have you heard of Earth Day? --- Yes, We have only one Earth. We have no choice but ________ it.

—How do you spend your weekends?—At weekends I prefer _______ at home to _______ out.

— Where are you going, Jack? — My hair is too long. I’ll have it _______.

— Dad, why should I stop ______ computer games?— For your health, my boy, I’m afraid you ______.

It is important for us ________English well.