unify|unified|unifies

学校决定将两个班级合并为一个，以更好地利用资源。

The school decided to ___unify the two classes into one to better utilize resources.

该理论是统一的，呈现为一个体系。

The theory is ___unified, presenting one system.

这款软件将所有功能整合到一个界面中。

This software ___unifies all features into one interface.