Above all, grammar is the most important in learning Japanese.

We need personnel who can handle any problem.

He is acting in a way that is like 'hide the head but forget the tail'.

What is your name?

Let's see, what is this?

He said nothing.

Have you decided which movie to watch?

He lied to conceal the truth.

It was revealed that he had a hidden weapon.

He installed a hidden camera in the room.