Now teachers tend to be more dependent on ________ is thought to be a great teaching­aid — the computer.

Look at that girl. Is it Susan–No, it _______ be her. She has gone backto her home town .

It was in the room _________ he was born _________ the meeting was held.

The part in the filmthe man broke down the door made some of the audience give a cry.

The model Sydney Opera House looks _______ the real one in Australia.