The Anasazi settlements at Chaco Canyon were built on a spectacular scale with more than 75 carefully engineered structures, of up to 600 rooms each, were connected by a complex regional system of roads.
with more than 75 carefully engineered structures, of up to 600 rooms each, were
with more than 75 carefully engineered structures, of up to 600 rooms each,
of more than 75 carefully engineered structures of up to 600 rooms, each that had been
of more than 75 carefully engineered structures of up to 600 rooms and with each
of more than 75 carefully engineered structures of up to 600 rooms, each had been
A: were谓语重复,应该去掉
B: correct,connected分词修饰句子主语settlements
C: 第二个of修饰Structures不对,应该修饰scale;each同位语从句用过去完成时没必要,
D: 第二个of修饰Structures不对,应该修饰scale;and with each没有平行对象,
E: 第二个of修饰Structures不对,应该修饰scale;each后面是完整句子但没有连词
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