1. I was downloading some good music when my mom came in.
2. As my teacher was explaining the new lessons, one of my colleagues fell from the chair.
3. While my father was driving home he crashed the car.
4. Last night, I was watching a thriller while my mother was taking a shower.
5. When the doorbell rang, nobody came.
6. At five o'clock in the evening, my friend just came to my house.
