问题补充:
-Do you believe that paper is madewood?
-Yes,I do.And you can see that books are madepaper.
A. from;from
B. from;of
C. of;from
D. of;of
答案:
A. from;from
(答案→)B. from;of
C. of;from
D. of;of
解析:考查介词的用法。be made of“由……制成(物理变化)”,be made from,“由……制作(发生化学变化,制成以后看不见原材料)”。因此第一空使用be made from;第二空使用be made of。