1，He was reading a book, which was about war. 他正在读一本关于战争的书。
2，He was reading a book, which he had bought from London. 他正在读一本书，这本书是从伦敦买回来的。
3，He set free the birds happily， which was a celebration for his success. 他开心地把鸟放了，这是对他成功的一种庆祝。
4，You can find whatever you need at the shopping centre, which is always busy at the weekend. 你可以找到你需要的任何购物中心，这始终是忙碌的周末。
5，York, which I visited last year, is a nice old city. 纽约，我去年去过，是一个很好的城市。
6，He paid the boy $10 for washing ten windows, most of which hadn't been cleaned for at least a year. 他给小男孩10美元去清洁这十扇窗户，这些窗户大多数都有一年没清洁了。
7，A shop should keep a stock of those goods which sell best. 商店应存有最畅销的货。
8，This is the family which is planning to move to the city. 这是要搬进城里的一家。
9，Internet is so interesting, which makes all possible happen. 因特网是如此有趣，它使任何事都有可能发生。
10，Which deep in thought, which he often was, he would forget all around him. 他常常陷入沉思，这时他就会忘掉周围的一切。
11，He bought a book, which was written by LuXun, and which he decided to give to his friend. 他买了本鲁迅写的书，他决定送给朋友。
12，For a while it looked as though the making of semiconductors, which America had invented and which sat at the heart of the new computer age, was going to be the next casualty. 曾有一段时间，似乎半导体制造业是下一个将要覆灭的产业。正是美国人发明了半导体，它在计算机新时代中起着核心的作用。
13，The ability to guard customer data is the key to market value, which the board is responsible for on behalf of shareholders. 保护客户资料的能力是市场价值的关键，董事会代表股东对市场价值负有责任。
14，In Europe, as elsewhere, multi-media groups have been increasingly successful: groups which bring together television, radio, newspapers, magazines and publishing houses that work in relation to one another. 在欧洲，就像在其他地方一样，多媒体集团越来越成功了，这些集团把相互之间有紧密联系的电视台、电台、报纸、杂志、出版社组合到了一起。
15，Dr. Myers and Dr. Worm argue that their work gives a correct baseline, which future management efforts must take into account. 麦尔斯博士和沃姆博士指出，他们的工作确定了一个准确的底线，未来的管理必须将其考虑进去。
16，For a while it looked as though the making of semiconductors, which America had invented and which sat at the heart of the new computer age, was going to be the next casualty. 曾有一段时间，似乎半导体制造业是另一个将要覆没的产业，要知道半导体正是美国人所发明，它在计算机新时代起着核心作用。
17，On this day, measures to improve motor efficiency come into force in the region, which are expected to save 135 terawatt hours of electricity per year as of 2020. 在这个地区对机动车提高效能的措施开始实行，可以预计到2020年每年可以节约电量达到135太瓦小时。
18，You can call me from 4 to 5, in which I'm at home. 你可以在4点到5点叫我，我都在家。
19，The owner of the cinema needed to make a lot of improvements and employ more people to keep it running, which meant spending tens of thousands of pounds. 电影院的老板需要很多改进和雇佣更多的人来维持运营，这意味着将要支出数万英镑。
20，Dorothy was always speaking highly of her role in the play, which, of course, made the others unhappy. 桃乐茜总是夸大她在该剧中的作用，毫无疑问，这会让别人感到不开心。
21，The result of the experiment was very good, which we hadn't expected. 实验的结果是非常好的，这是我们没有预料到的。
22，Mary has a book, which is very precious. 玛丽有一本非常珍贵的书。
23，This is a house in which lives an old man. 这是住了一个老人的房子。
24，That dog which I found in the street belongs to Mary. 我在街上发现了属于玛丽的狗。
25，Football, which is an interesting game, is played all over the over. 全世界都踢足球，它是一项有趣的运动。
26，The project which a British businessman has invested in is under construction at present. 一位英国商人投资的项目目前正在建设中。
27，Recently I bought an ancient Chinese vase, the price of which was very reasonable. 最近我买了一个中国古代的花瓶，它的价格是非常合理的。
28，Alice received an invitation from her boss, which came as a surprise. 爱丽丝收到她老板的邀请这是一个惊喜。
29，The weather turned out to be very good, which was more than we could expect. 天气变得非常好，比我们期待的还要好。
30，It rained hard yesterday, which prevented me from going to the park. 昨天雨下的很大，这阻止了我去公园。
31，Things then greatly changed，which surprised us．那时事情巨变，使我们惊讶。
32，They tried to think of a plan by which they could finish their task ahead of time. 他们试图想个计划，以便提前完成任务。
