1. Yesterday, while driving to the company, my car broke down. 2. While on her trip in Delhi, Diana got food poisoning from eating some shrimps. 3. When everyone was enjoying the party in the restaurant, suddenly the lights went out. 4. When he was taking pictures in the zoo, a monkey stole his camera. 5. When she arrived at the airport, she saw her old friend. 6. If we raise people's awareness and provide more recycling bins, many people will recycle. 7. If I were a scientist, I would create vehicles that run on trash and waste. 8. If we turn off the lights when we aren't using them, we can save electricity. 9. If we could stop using chemical fertilizers, we could reduce soil and water pollution. 10. If more people used electric cars, the air would be less polluted. 11. I was swimming in the pool when the fire alarm rang. 12. While we were eating, my brother started feeling sick. 13. He was swimming in the sea when someone stole his clothes. 14. While they were hiking, it started raining heavily. 15. We were buying souvenirs when my favorite actor walked into the store. 16. The youngest boy has just started going to school. 17. Do you go to the prison to visit him? 18. I want to go to an art gallery when we visit London next month. 19. One of the world's most famous museums is the Louvre, which has some of the world's greatest art. 20. She will go use the app Hi-Hola to learn English every day. 21. It is going to rain, so you should bring an umbrella. 22. I am not going to throw a birthday party next week. 23. I think there will be robot teaching assistants in all schools.