问题
阅读理解
Plastics can beused to makinginto many useful things.
A B C D
答案
C used to making--- used to make
used to 这里意思是被用于，所以后面接动词原形。
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Plastics can beused to makinginto many useful things.
A B C D
C used to making--- used to make
used to 这里意思是被用于，所以后面接动词原形。