他必须尽全力才能完成这个艰巨的任务。

He had to ___exert all his effort to complete the challenging task.

为了完成这个项目，他必须全力以赴。

He had to ___exert all his energy to finish the project.

老师要求家长在家庭教育中施加更多控制。

The teacher asked parents to ___exert more control in home education.