You should look after,classmates.

Mum, where did you put my sweater?—Is it _____ black one? I put it in _____orange box near your desk.

Do you know_______ this dictionary belongs to? -Let me see. Oh, it’s_______.

It __________ great to watch Harry Potter on TV tonight.

Are Mr. and Mrs. Wang living alone in the house? —-Yes, altough they have three sons, of them live with their parents.