When I was walking in the park, I saw a squirrel.

While he painted the wall, he was listening to music.

When she was reading a book, the phone rang.

While the teacher explained the lesson, the students were talking.

When I was cooking dinner, the lights go out.

While I was waiting for the bus, it started raining.

When they were playing soccer, it rains.

While she was studying, her friend called her.

When I was cleaning the house, I found an old photo.

While the dog was barking, the baby sleeps.

When I was drawing, my pencil broke.

While we were hiking, we see a deer.

When the teacher was explaining, the students were listening.

While I watched TV, the doorbell rang.

When he was jogging, he found a wallet.

While the sun was setting, the stars appear.

When I was writing a letter, my pen ran out of ink.

While they were fishing, they catch a big fish.

When the movie was playing, we were eating popcorn.

While I was baking a cake, the oven turns off.