2. 

37. When Guanlao set up his library outside his house, he hoped that ____.

42. Nowadays, fashion trends have embodied the ____ brand.

66. In recent years, an increasing number of college students are involved in various volunteering causes. There is no denying that volunteers make great contributions to society. On the one hand, in any big events such as Beijing Olympic Games and Shanghai World Expo, human resources are surely in great demand. Whatever a volunteer can do is helpful for the event. On the other hand, students can reap great benefits from volunteering work. Various experiences in their volunteering practice guarantee their brighter future career.

49.If you don’t want to answer a complex email immediately, you can give the sender ___49___, telling him or her when you will write back.

20. By the time the fire engines arrived, the house ____ to the ground.

45. Fashion has changed in the aspect of ____. 

67. 请按下面提示拟写一份义卖活动通知。主办方：学生会。活动目的：资助一所乡村小学的贫困儿童。活动时间：2018 年 4 月 20 日星期五 14:00－17:00。需要募集的义卖物品：书籍、文具、衣服鞋帽、围巾手套、日用品、手工制品、艺术作品以及各种电子产品等。活动要求：请同学们踊跃捐赠并提前一小时将义卖品送到图书馆一楼。欢迎大家积极参与！Words for reference：义卖 charity sale 文具 stationary 艺术作品 artistic works捐赠 donate 学生会 the Student Union 日用品 articles for daily use电子产品 electronic products

33. Since the young man learned that he had a lung cancer, he has been in deep ____.

59. 这次会议所讨论的内容仅限于议程上的项目。

25. ____ technological progress helps to relieve work is a fact accepted by people.

56. 由于没有汽车，他感到购物很不方便。