把“the students of class 5 are in the classroom" 中的in the classroom"就提问

The number of students most students most of students most of the students都对么?all students all the students？all of the students？ The number of the students in the class （ is ） small.把 is 换成 are 行吗? 把“the students of class 5 are in the classroom 中的in the classroom就提问 all the和all of the的区别例如有一题改错：All students are in the classroom.我把“All students”改为“All of the students”,但答案上是改成“All the students”.这两个有什么区别? three of the students 翻译 The students of Class 4 a number of the students one of the hundred students of all the students he most of students 与most of the students的区别. most of students对吗?是不是应该是most of the students none of students 和none of the students 的区别 a number of students还是a number of the students all of the students为什么有of all the students 还是all of the students all the students 和 all of the students 分别? That is the exact number of students present.主要对students present不太理解.把present放在students前面行吗？