标题: SC问题，GMAC有自相矛盾的问题，求解答 [打印本页] 作者: minniecao 时间: 2016-9-19 19:03 标题: SC问题，GMAC有自相矛盾的问题，求解答 The Anasazi settlements at Chaco Canyon were built on a spectacular scale of more than 75 carefully engineered structures of up to 600 rooms, each that had been connected by a complex regional system of roads.
加黑处错误原因，GMAT解释为 each is a subject 但是没有verb所以错了
Sixty-five millions years ago, according to some scientists, an asteriod bigger than Mount Everst slammed into North Americam, an event that cause the plant and animal extinctions that mark the end of the geologic era known as the Cretaceous Period. 这句an event 就不是主语了，不需要动词了。