44. It was raining, so we decided to postpone our camping. Since _____________________________________. 45. She wants them to sing a song. She suggests they _____________________________________. 46. She couldn’t join us because she was busy. She was busy, so_____________________________________. 47. Shall we go to the cinema tonight? What about _____________________________________. 48. Why don’t we use energy-saving bulbs? I suggest_____________________________________ . 49. Although she was not beautiful, she took part in a beauty contest. She wasn’t beautiful but _____________________________________. 50. Work hard and you will pass the exam. If you _____________________________________. 51. If you don’t start working hard now, you won’t be able to pass the final exam. Unless _____________________________________ . 52. We are delighted. You passed your English exam. We are delighted_____________________________________ . 53. She was tired and therefore she wanted to go home. She wanted to go home because _____________________________________.