The single-family house constructed by the Yana, a Native American people who lived in what is now northern California, was conical in shape, its framework of poles overlaid with slabs of bark, either cedar or pine, and banked with dirt to a height of three to four feet.
banked with dirt to a height of
banked with dirt as high as that of
banked them with dirt to a height of
was banked with dirt as high as
was banked with dirt as high as that of
1. 本体考察的独立主格结构,动词的过去式表示被动语态,即如果谓语是overlaid,其完整的是was overlaid,因此banked便可表示被动语态,由此排除D/E;
2. C: bank的对象应该是its framework,因而使用them是错误的,而banked them with dirt更是错误的独立主格结构。排除C;
3. B:that of无指代对象,且画线部分后面是具体的高度值,因而画线部分应该是“达到...样的高度”,所以B选项错误,正确选项是A。
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