1) will see

2) will call; does

3) won't realize (BrE: realise)

4) don't attend; won't do

5) realize (BrE: realise); will get

Ответ:

1. When we go to Egypt, we’ll see the Pyramids.

2. Mrs. Smith will call the police if Jack does graffiti on her garage again.

3. Unless you visit Rome, you won’t realise how beautiful it is.

4. If you don't attend all your classes, you won't do well.

5. Sandra will come home soon. As soon as she realises what has happened, she will get very angry.