As students we study hard to make our country more beautiful and stronger.A. shouldB. ma

问题补充：

As students, we study hard to make our country more beautiful and stronger.

A. should

B. may

C. can

D. could

答案：

(答案→)A. should

B. may

C. can

D. could

解析：本题的含义是作为学生我们应该要努力学习，should表示应该的意思，表示的是建议，符合题意，故本题选A。