Every minute is made full of our lessons well.
A. to use; study
B. use; studying
C. use; to study
D. used; studying
网友回答
A. to use; study
B. use; studying
(答案→)C. use; to study
D. used; studying
解析：考查词组和不定式做目的状语： make full use of“充分利用”，这里是这个词组的被动语态。后面的不定式是目的状语。句意：要想学好功课，每一分钟都要被充分利用。故C正确。