[单选题]students think it their duty to study hard has laid the foundation for the university's high reputation.
A
That all
B
What
C
All that
D
What all
正确答案：A
题目解析
That引导主语从句 all the students think it their duty to study hard (所有学生都将努力学生当作己任)这一事，has laid the foundation for the university's high reputation.为该大学享有声誉奠定了基础。
