Q29:
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.
each a roof of poles and arrowweed
each a roof of poles and arrowweed that are being
with each being a roof of poles and arrowweed
with roofs of poles and arrowweed to be
with roofs of poles and arrowweed that are
没明白为什莫选第一个?
each a roof of poles and arrow weed
选这个吧
其他的都有错
that are being
with each
to be
that are
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