1 A: You look tired, Tom.
B: Yes, I have been hiking all day.
2 A: Have you ever had a bad accident?
B: Yes. I once tripped on a rock and broke my arm.
3 A: What have you done to your finger, Jane? It looks swollen.
B: I slammed a door on it yesterday morning.
4 A: How often do you go mountain climbing, Sam?
B: I go about once a month. I am going this weekend, actually.
5 A: Look at Mark and James! They are diving from the cliff!
B: Yes. I think they are enjoying themselves!
6 A: What were you doing when the earthquake happened?
B: I was doing my homework while Tim and Sally were watching TV.
