IX. Rewrite the sentences 37. There were more accidents before the new system of traffic control. (used to) ________________________________________________________________________________________________ 38. Traffic accidents can be prevented if people obey the traffic rules strictly. (passive voice) ________________________________________________________________________________________________ 39. We enjoyed our holiday despite the rain. (although) ________________________________________________________________________________________________ 40. Nancy was sad after losing the contest, but she managed to smile. (in spite of) ________________________________________________________________________________________________ D:'