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.

Suddenly, I heard the sound of an explosion from afar.

His new song gained explosive popularity.

The police found an explosive substance at the location.

This is my first question.

I am studying Korean language.

She was wearing a moonstone necklace.