Ex 4:
1. Invention
2. Defendant
3. Reflection
4. Happiness
5. Importance
Ex 6:
1. B
2. A
3. B
4. B
5. A
Ex 7:
A: Is 1) everything okey? You seem fed up.
B: Well, 2) I have had a hectic day and now I've got to work late.
A: That's a pity. But I'm staying late, too. How 3) about going out together afterwards?
B: I 4) don't think so. I feel tired already.
A: Go on. It'll cheer you up.
B: OK. 5) Why not? Where are we going?
