Many students in this school make a rule to e to the evening classes even on Saturdays and Sundays.
A. this
B. that
C. it
D. them
网友回答
A. this
B. that
(答案→)C. it
D. them
解析：考查代词it 作形式宾语，真正的宾语是后面的不定式，短语：make it a rule 使成为规定，句意：在这个学校许多学生上晚自习已成为一种规定甚至在周六和周日。所以选C。