[求助]XDF-section5-3

For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle,

A.each a roof of poles and arrowweed

E.with foofs of poles and arrowweed that are

此题答案是A， 我选的是E，首先不太明白后半句话的意思，arrowweed这个词没有查着。。。然后不太明白为什么用的     each of  而不用 with?? THANKS

E肯定不对。。。that+are+done！

其次，with做伴随状语可以跳跃修饰，所以就不明确到底是修饰shades 还是dwellings了！

最后，arrowweed没必要知道什么意思！

For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle,

A.each a roof of poles and arrowweed 这里each做shades的同位语 后面描述每一个shade是什么样子的

E.with foofs of poles and arrowweed that are未划线部分已经确定了一般过去时 that are不妥 而且句意有些不清楚with roofs and arrowweed是一个shade有好几个roofs还是只有一个roof 不如A表达清楚