1. I was waiting for a bus / when / I / saw my friend / .
2. Where were you / going when I / met / you / yesterday / ?
3. I had played football / but when I / changed schools / I / stopped .
4. I had not seen Jenny / for a long time / before / we / met again / at a swimming competition / last weekend / .
5. While you were watch TV / I / did / the washing up / !