1．Sometimes it's hard to accept the truth ________ the lie sounds so much better．
答案：because 句意：有时候事实真相很难被接受，因为谎言往往要顺耳多了。此处表示原因，故填because。
2．________ noted otherwise, these brochures are free of charge．
答案：Unless 句意：除非另外标注，否则这些小册子都是免费的。根据语意可知，用unless。本题也是一个省略句，相当于Unless these brochures are noted ．．． 。
3．She was such a proud person that she would die ________ she would admit she was wrong．
答案：before 句意：她是个如此骄傲的人以至于她宁愿死也不愿承认她是错的。这里用before，翻译成“宁可……也不愿”，常与will或would连用。
4．I think John will make a good monitor, ________ I'd like to vote for him．
答案：so 句意：我认为约翰会成为一个好班长，所以我想选他。前后句是因果关系，故填so。
5．My mother is always warning me when I go out, “Don't get off the bus ________ it is running．”
答案：while 句意：我出去的时候，妈妈总是警告我：“不要在车还在走的时候下车。” 此处while意为“当……的时候”。
6．I had hardly rung the bell ________ the door was opened suddenly, and my son rushed out to greet me．
答案：when 句意：我刚一(几乎还没有)按门铃，门突然就被打开了，我儿子就冲出来迎接我。hardly/scarcely ．．． when，表示“一……就，刚刚……就”。
7．I won't lend you my car ________ you promise you will not drive after drinking．
答案：unless 句意：我不会把我的车借给你，除非你保证不会酒后开车。根据句意可知，此处表示“除非”，因此用unless。
8．He had to sell his luxury car, ________ his company was in debt．
答案：for 句意：他不得不卖掉自己的豪车，因为他的公司负债了。for “因为”。根据句意可知这里表示原因，且为补充说明。
9．Kate, run a bit faster, ________ you can catch up with all of your classmates．
答案：and 句意：凯特，再跑快一点儿，你就能够赶上你所有的同学了。本句是“祈使句＋连词＋陈述句”结构。and表顺承关系，故填and。
10．________ the movie star has always been the focus of much media attention, he tries to lead a normal life．
答案：While/Though/Although 句意：虽然这个影星一直是媒体关注的焦点，但是他试图过一种正常的生活。根据题意可知，前后分句是让步关系， 故填While/Though/Although。
11．You should try to get a good night sleep, ________ much work you have to do．
答案：however 句意：无论你有多少工作要做，你应该尽力保证有充足的睡眠。however/no matter how可以引导让步状语从句，结构是：however/no matter how＋adj．/adv．＋主语＋谓语。
12．When you read the book, you'd better make a mark ________ you have any question．
答案：where 句意：当你读这本书的时候，你最好在你有问题的地方做好标记。where此处引导地点状语从句。
13．Relax yourself every day, ________ you'll be too tired to get good grades．
答案：or 本句是“祈使句＋连词＋陈述句”结构。or表示转折关系，意为“否则”， 故填or。
14．________ students decide which college to go to, they should research the admission procedures．
答案：Once 句意：一旦决定了要上哪所大学，学生们应该去查询学校的录取程序。once “一旦”。根据句意可知，前后分句之间是条件关系，故填Once。
15．Mr White had no sooner finished the speech ________ the students started cheering．
答案：than 句意：怀特老师一完成报告同学们就欢呼起来。hardly ．．． when＝no sooner ．．． than＝scarcely ．．． when “一……就……”。
16．Jim said he was ill, ________ I saw him in the street just now．
答案：yet/but 句意：吉姆说他生病了，然而/但是我刚才在大街上看到了他。yet “然而”，but “但是”，都表转折关系，连接句子。
17．Leave it with me ________ I will see what I can do with it．
答案：and 句意：把它交给我吧，我看看能怎么处理。“祈使句＋and＋陈述句”是固定句式。
18．It is difficult for us to learn a lesson in life ________ we've actually had that lesson．
答案：until 句意：对我们来说，从生活中吸取经验教训很难，直到我们真正经历过那次教训。until在此为连词，意为“直到……为止”，符合句意。
