答案：shouldn't be played　句意：旅馆管理部门恳请客人晚上11点后不要打开收音机。由request 可知that从句应用should＋动词原形，play与radio间为被动关系，所以此空填shouldn't be played。

　　2． I am looking forward to the day __________ my daughter can read this book and know my feelings for her.

　　答案：when　考查定语从句。句意：我一直都在期待着我的女儿能够阅读并理解我对她的感情的那一天。先行词是the day，后面的定语从句结构非常完整，所以使用关系副词when在句中作时间状语，同时引导定语从句。

　　3．-Do you think we can get there on time?

　　-Yes, so long as the car doesn't break ____________.

　　答案：down　break down"停止运转，抛锚，(身体)垮了"，符合题意。

　　4．-I see you got a "D" in biology. ______ come?

　　-Well, I found that subject hard. I think I'll drop it for history.

　　答案：How　考查交际用语。句意：--我看到你生物得了D。怎么回事？--噢，我发现生物难。我想我要放弃它学历史。此处How come？意为：怎么回事？符合题意。

　　5． Though first ____________ (shock) to see the car ahead suddenly turn over, he calmly pulled up to give a hand immediately.

　　答案：shocked　考查从句的省略。句意：看到前面的车突然翻了，一开始他很吃惊，但是他很快平静下来，把车停在旁边，立即开始施救。由句意可知，他很惊讶，所以用shocked。该句though后省略了句子的主语he，和动词be的形式was，也可以补充在though后，得出填shocked。

　　6．Liu Xiang's breaking the world record was an exciting moment, ____________ all of us will never forget.

　　答案：one(that)　one指代moment，作同位语，指代一个"我们永远不会忘记的时刻"。all of us will never forget 是定语从句，作one的定语，可以省略关系代词that。

　　7．Many old houses ____________ (pull) down over the last few years.

答案：have been pulled　由over the last few years可知应用现在完成时；house与pull 构成被动关系。所以用现在完成时的被动语态。