这两天天天看到你发帖啊。。。。一堆一堆的。。。。。
首先,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.
这句话里,The single-family house constructed by the Yana was conical in shape是主句。......shape, its.......中用逗号隔开,而逗号不能连接两个主谓完整的句子,根据题目,its后面是独立主格结构,没有谓语。
-- by 会员 sandychen168 (2011/8/17 17:40:26)
可是答案是A啊,还是不懂D哪里错了~