The man ______ gave us a talk on science yesterday is a famous scientist.

We _______ them by three to two yesterday.

Uncle Wang arrived ____ No.14 Middle School half an hour ago. [ ]

This isn’t ______ purse. I left _______ at home.

Listen! Someone is knocking at the door. Who _____it be?—It_____be Tom. He phoned to visit me this evening.