In my opinion, it’s the best use that could be this machine.
A. made into
B. made from
C. made of
D. made with
网友回答
A. made into
B. made from
(答案→)C. made of
D. made with
解析：考查短语辨析。be made into被制成，be made from 由什么制作，make the best use of 充分利用，句意：依我来看，能够充分利用这台机器。题中含有一个定语从句，先行词为the best use，从句的谓语为could be made of，所以选C。