最新真题15题－5

lost_my_account

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.E

(A) each a roof of poles and arrowwood

(B) each a roof of poles and arrowweed that are being

(C) with each being a roof of poles and arrowweed

(D) with roofs of poles and arrowweed to be（A）

(E) with roofs of poles and arrowweed that are

请NN们指点，A到底是个什么结构，为什么在这里是对的！谢谢

samwong

前面强调整体,后一句强调个体.是独立主格