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。