午休期间，我负责照顾孩子们。

During the lunch break, I ___am ___responsible ___for looking after the children.

她负责办公室的高效运营。

She ___is ___responsible ___for the efficient running of the office.

他负责组织所有的团队会议。

He ___is ___responsible ___for organizing all the team meetings.