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题库 / OG2015V-SC-69
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.
scale, with more than 75 carefully engineered structures, of up to 600 rooms each, were
scale, with more than 75 carefully engineered structures, of up to 600 rooms each,
scale of more than 75 carefully engineered structures of up to 600 rooms, each that had been
scale of more than 75 carefully engineered structures of up to 600 rooms and with each
scale of more than 75 carefully engineered structures of up to 600 rooms, each had been
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A选项run-on,两个动词were built 和were connected
scale of用法错误； comma+prep通常修饰前面整句话，而不是一个名词；
each应该放在逗号前
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