深夜，他还在办公室加班工作。

He is working late at night in the ___office.

我们的新办公室在商务区，离地铁站很近。

Our new ___office is in the business district, close to the subway station.

办公室的员工们正在为即将到来的年终会议做准备。

The ___office staff are preparing for the upcoming year-end meeting.