The visit of the police was _________ the lost child .

The Group of Eight (G8)________the eight richest countries in the world.

At minus 130℃, a living cell can be _________ for a thousand years.

－I’ve decided to compete in the race, but I’m afraid I won’t be the best.－____. You never know until you try.

We should ____our classmates because they are our friends.