48. Officers can’t work properly without certain important pieces of ______ (仪器) .
47. All kids can do so much in their_____________(生活、生命).
46. Everyone knows that Beijing is to hold the 29th Olympic Games, the arrangements of which
will make the players and _________(客人)satisfied.
45. Zhang Ying, 35 years old, married once, is a _____________(幼儿园)teacher.
44. ---You are always full of energy. Can you tell me the secret?
---Taking plenty of e____________(锻炼)every day.
43.Various activities were organized, including the opening__________(仪式), lectures on popular science and meeting at which writers and readers communicated face to face.
42. Of course, you can never rely on the British summer weather, so taking an ____________(雨伞)along might be a good idea just in case.
41. Being happy is like an infectious d_________(疾病); it causes people to shrink away from the sufferer.
40. Of__________(当然), scientists cannot answer all of your questions.
39. Tony, a young ____(工程师)in a modern car factory, enjoys an adventure journey once a year.