一Do you Know _______ lady in blue? 一Yes. She is a teacher of a university. 

 —Who’s _____ woman in purple?—Peter’s mother. She works in ______university.

Let's look at the bag. Can you see _____“s” on the corner of_____ bag?

—Is that _____ orange, Jack?—No, it’s ______ watch.

 _____ORBIS doctor who got here yesterday needed _______ X-ray machine to examine his patients.