讓步根本未能平息學生的憤怒。

　　The concessions did little to placate the students.

　　不到20個學生考試全部及格。

　　Fewer than 20 students passed all the exams.

　　學生須在8:30以前到校。

　　Students are required to be in school by 8.30.

　　學生可以免做16–18題。

　　If you are a student, you can omit questions 16–18.