宽腿牛仔裤现在又流行起来了。

Wide-leg jeans are ___in again these days.

经理现在在办公室吗？

Is the manager ___in the office now?

他现在参与了这个社区项目。

He is ___in for this community project now.

这种发型在办公室里不合适。

This hairstyle isn't ___in for the office.

她很高兴被选为学生会主席。

She was happy to be ___in as the new president of the student council.