Question 1. Yesterday, I saw a serious accident while I ____________ on the beach.
Question 2. She has been sitting at the computer since her husband_______ home.
Question 3. By the time he finishes his speech, I ______ for over one hour.
Question 4. When some students _________ the windows, the principal entered the classroom.
Question 5. Mary ran into an old friend while she ______ in the park.
Question 6. When I came to visit my mom last Sunday, she______ in the kitchen.
Question 7. Native species _____a part of a given biological landscape since they adapted to the local environment.
Question 8. While Linda_______ last night, she got a nightmare.
Question 9. Tom burnt his hand when he_______ dinner.
Question 10. By the time we get there tonight, the film________.
Question 11. Mary _____ to catch the bus when she slipped and fell down.
Question 12. My mother ________ the clothes to dry outside when it suddenly started to rain.
Question 13. Don't tell us that joke again. We______ it so many times!
Question 14. Lilly________ asleep when she________ her homework yesterday.
Question 15. My father was watching TV when my friend suddenly _________to my house.
Question 16. Last month the old man ___________ in the hospital for some days.
Question 17. Since Chat GPT was launched, many university students _________ advantage of it to hone their writing skills.
Question 18. While I_______ at the bus stop, three buses went by in the opposite direction.
Question 19. By the time I went to bed last night, I _____ my homework.
Question 20. At this time last night she was cooking and he ______ the newspaper.
Question 21. We were extremely tired at the end of the journey. We_______ for more than 10 hours.
Question 22. Bob _______ along the shady path when he saw an old friend.
Question 23. We_________ through the forest when we realized we were going in the wrong direction.
Question 24. By the time Brown's daughter graduates, he_________.
Question 25. It_______ heavily when we came back home.
Question 26. Yuna_______ the plants in the garden when it suddenly started pouring down.
Question 27. He was chatting with the locals when he ______ about a secret spot to watch the sunset.
Question 28. While they________ the new project, their boss called for a meeting.