前几年美国的世贸大楼被恐怖分子攻击而倒塌，致使上万人丧生，有关人士指出，楼倒塌后缺乏必要的自救知识，是使丧生人数增多的一个原因．如果地震导致城市和村庄的建筑物倒塌，那么被埋在废墟里的人，在下列最有效自救的方法是（ ）
A：用硬物敲击木板或墙壁，向营救人员求救
B：大声呼救
C：静等着人员前来营救
D：见缝隙就钻，从废墟中爬出来
① Why do you like spring? ____ A. I went home at 9：20.
② When did you go home last night?____ B. They are thirty “five yuan”
③ Was there a library in your school before? ____ C. Because I can fly kites.
④ How much are your pants? ____ D. It’s big and bright.
⑤ What’s your new room like? ____ E. No, there wasn’t.
