Who’s that? —My aunt. ________ is a nurse in a hospital.

The windows _______ after school is over.

Harry Potter is an____book for children, but my cousin doesn’t seem at all_____in it.

He usually goes to school ____ bike, but sometimes he _____a taxi to school.

Each year __________ fishes are killed by the polluted water and many people are made sick by the polluted air .—-So we should do something to stop it .