孩子们根据他们的能力被分组。

The children are ___grouped according to their ability.

我建议我们应该根据我们的英语水平被分组。

I suggest that we should be ___grouped based on our English proficiency level.

经理计划将员工分组到不同的部门以提高效率。

The manager plans to ___group the employees into different departments for efficiency.