3. 3. C
4. A
5. B
6. B
7. C
8. A
9. A
10. B
4. 1. A: You look really tired. What were you doing all morning?
B: I've been unpacking boxes all morning.
2. A: Have you tried Indian food?
B: Yes, I have.
A: Really? When have you tried it?
B: Three weeks ago.
3. A: Hello, Tomson Roofing Company. How will you introduce yourself?
B: Hello. My name is Mr. Smith and I've got a problem with my roof tiles.
