He was sharpening the blade of the knife.

She decided to dye her hair roots.

He put on a false mustache to hide his true identity.

He paid for the meal at the restaurant on credit.

Water caltrop has a beautiful shape and is also used in cooking.

My family consists of four people.

I drew a four in mahjong.

The baby said 'peek-a-boo!' with a smile.

Looking at the child eating like a glutton, he laughed.

Mr. Inagaki is my best friend.