17. The bed was very uncomfortable. I A. didn't B. did 18. The window was open and a bird A. fly B. flew 19. I a lot of money yesterday. I B. spent / buy A. spend / buy 20. What A. were / do you B. did / did C. wasn't into the room. C. was flew sleep very well. last weekend? C. did / do C. spent / bought D. not. D. did fly an expensive dress. D. was spent/ bought. D. do / did.