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B. stopped C. will stop D. shall stop 2. ________the day went on, the weather got warmer. A. With B. Since C. While D. As 3. After I had walked for six hours________. A. I had been tired out B. I’ll be tired out C. I was tired out D. I would have been tired out 4. ________we have finished the book we shall start doing the exercises. A. For now B. Since that C. Now that D. Since now 5. ________ he was sitting at the desk, the day173。dreaming Peter saw figures in the sky. A. Until B. Since C. While D. During 6. The thief stole my wallet ________ I knew it. A. before B. until C. while D. after 7. It was a long time ________ we met again. A. before B. since C. for D. when 8. It is five days ________ we came here. A. when B. before C. as D. since 9. ________ he was on holiday he caught a cold. A. When B. While C. As D. At 10. He didn’t go home ________ he finished his work. A. until B. after C. when D. since 11. Because of the heavy traffic, it was already time for lunch break________she got to her office. A. since B. that C. when D. until 12. ________ you are my best fr