She's sitting for her professional certification next month, so she's studying every evening.

The new intern is sitting in on the negotiations to learn how to manage client relationships.

He spent the afternoon sitting by the lake, lost in thought.

When the principal is away, Mrs. Thompson sits in for him at the morning assemblies.

I'm sitting in for the manager at today's meeting because she's out sick.

When I put a towel on the chair, my dog sits on it and falls asleep.

The cat kept sitting on it even after I bought a new cushion.

She sits in the front row during every lecture.

He's sitting in on the committee meeting to learn the procedures.

Sits for the portrait studio are booked online, so make sure to reserve your spot.