试题正文
Americans now recycle far more than they used to
because
选择一项：
a.
they produce more rubbish than other countries.
b.
they need more aluminium.
c.
they are competing with Germany.
d.
they want to make a profit from recycling.
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Ваш ответ верный.
正确答案是：they produce more rubbish than other countries.