1) When I saw him, he was wearing a tracksuit.
2) I dropped a glass while I was doing the washing-up.
3) When you arrived, I was reading.
4) He found a banknote while he was walking in the park.
5) She broke her arm while she was skiing. (Je ne suis pas sûre pour celle-ci)
6) She screamed in her sleep because she was having a nightmare.
7) The driver did not see the little boy who was playing in the middle of the street.
8) We took our calculators out while the teachers wasn't looking.
