Ex.1 a
1. B: I'm sightseeing.
2. B: I'm having dinner
3. A: do they usually go
4. B: He travels
5. A: does your girlfriend do
6. A: Are you working
7. B: It closes
8. A: Is it raining
b)
1. don't like
2. argue
3. am learning, is teaching
4. do you usually go
5. goes out
6. isn't shining
7. Are you using, want
8. loves, doesn't do
