6. I turned off the lights. After that, I left the room. (before)
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7. The other passengers will get on the bus soon. Then we’ll leave. (as soon as)
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8. Susan sometimes feels nervous. Then she chews her nails.(whenever)
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9. The frying pan caught on fire. I was making dinner at that time.(while)
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10. I won’t return my book to the library. I’ll finish my research project first.(until)
6. I (had) turned off the lights before I left the room.
7. As soon as the other passengers get on the bus soon, we'll leave.
8. Whenever Susan feels nervous, she chews her nails.
9. The frying pan caught on fire while I was making dinner.
10. I wont return my book to the library until I have finished my research project.
