1. He fell off his bike when he was cycling home.
2. The children were playing video games when the visitors arrived.
3. We were having a barbecue when it started to rain.
4. I was finishing my report when my computer crashed.
1. He fell off his bike when he was cycling home.
2. The children were playing video games when the visitors arrived.
3. We were having a barbecue when it started to rain.
4. I was finishing my report when my computer crashed.