Please tell me your opinions, each of you.

Each student brought their own homework.

It's difficult to solve a part of this problem.

Each class conducts lessons in their respective classrooms.

Each class conducts lessons in their respective classrooms.

He is playing soccer in a club team.

He utilized his project management skills to start a new business.

He decided to advance his pieces to make his career successful.

My doctor in charge is very excellent.

Please contact the person in charge.