The catfish is living in the mud.

There are many large Amur catfish living in this river.

He brought his muddy shoes into the house.

The children are enjoying playing in the mud at the park.

He is living a simple life.

My life has become busy recently.

My keys are inside the house.

He is quite a good cook.

I think his Japanese has improved quite a bit, hasn't it?

I am busy with work during the daytime.