用英语怎么说“担当工作或承担工作”？

有许多种说法：
（1）in charge of
The chief engineer was in charge of directing the building of the subway.
主任工程师担任指挥地铁的建造工作。

（2）be responsible for
The bus driver is responsible for the passengers safety.

（3）

最简单的表达:undertake the job
undertake: 承担, 担任
e.g. undertake a task 承担一项任务

take responsibility of....
be responsible for