问题
选择题
Every minute is made full use of _________ our lessons before the exam.
A．studying
B．studied
C．to study
D．being studied
答案
C
题目分析：考查不定式做目的状语：句意：在考试前每分钟都要被充分利用来学习功课。Make full use of的宾语是every minute，不定式是目的状语，选C。