问题描述：
新概念3 中第九课 时态问题!
请问下在新概念3第九课中：they had fallen off high buildings, yet only eight of them died from shock or injuries. One cat, Sabrina, fell 32 storeys, yet only suffered from a broken tooth. 第一句用了一个过去完成时,第二句怎么只用了一般过去时啊!为什么会有差别呢?
请问下在新概念3第九课中：they had fallen off high buildings, yet only eight of them died from shock or injuries. One cat, Sabrina, fell 32 storeys, yet only suffered from a broken tooth. 第一句用了一个过去完成时,第二句怎么只用了一般过去时啊!为什么会有差别呢?
问题解答：
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