This problem is simply a matter of not having enough time.

This is the selection I chose.

He chose a character named Sen.

He is making a model of a battleship.

The air conditioning in this room is very efficient.

The doctor said there is a problem with his jejunum.

My scientific calculator can perform very advanced calculations.

Tanzan is my best friend.

The lens of this camera is easy to attach and remove.

Himemiko is my best friend.