Every minute should be lessons.
A. made full use to learn
B. made use of learning
C. made use of to learn
D. used of learning
网友回答
A. made full use to learn
B. made use of learning
(答案→)C. made use of to learn
D. used of learning
解析：考查固定短语make use of。be used of learning是习惯于学习的意思，不符合句意，排除D；句子Every minute should be lessons.中make use of的宾语是minute，每分钟都应该充分利用为的是学习，所以要用动词不定式作目的状语。所以选C。