A: Hello, Mark. You 1) ...took... a long time to answer the door.
B: Sorry. I 2) (did not/hear) the bell. Come in, Tony.
A: 3) What. .(are you/planning) to do today?
B: Well, I 4) (have been thinking) of going for a picnic in the country, but the weather is awful so I 5) (have changed) my mind.
A: Oh dear. Well, yesterday Mary 6) (told) me that she 7) (had bought) two tickets to see the Rocking Stars, but she couldn't go to the concert. So 18) (bought) the tickets from her, because I 9) (thought) you'd like to go.
B: Tony, that's brilliant! I 10) (meant) to buy tickets for that concert, but they 11)..(had sold out) by the time I 12) (went) to the booking office.
A: Well, it's lucky I 13) (saw) Mary, then, isn't it?