Many students in this school make a rule to come to the evening classes even on Saturdays

问题补充：

Many students in this school make a rule to come to the evening classes even on Saturdays and Sundays.

A. this

B. that

C. it

D. them

答案：

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。