david is taller than-----in his class a.the other student b.other student c.any other student.

选C。因为：

one… the other 只有两个（部分）其中的另一个
some… the others 有三个以上
the others = the rest 剩余的全部

any other 任何一个

C

如果是a的话 student要用复数，因为和其他同学比，不止一个
B同样应该使用复数，而且掐面还要加the，特指他们班的同学
C any other student ，student 不用复数，其他同学的意思

David 比他班里的其他同学都高

David is taller than ALL THE OTHERS / ALL OF THE OTHERS in his class
David is taller than ANYONE ELSE in his class
David is taller than ANY OTHER STUDENT in his class
David is taller than ALL THE OTHER STUDENTS in his class
David is taller than ANY OF THE OTHERS / ANY OF THE OTHER STUDENTS in his class

认真比较，花点时间背出来。实在太有用了。

C
为了表达david是班上最高的人
A错在the other student in his class.除非这个班上只有2个人可以这么用，否则这个the other无法确定
B other student。student前面缺冠词

c any other student
david比他们班其他任何一个学生都高。

c，david是一个人，跟别人一个一个比，不是一和全部一起比