He received the allowance.

I use plain flour to make bread.

He proposed a new theory about quantum mechanics.

Thanks to his serendipity, we were able to find a new business opportunity.

Intermolecular forces are an important factor in determining the properties of a substance.

Katoriki is a rare name, isn't it?

I'm so busy with work, I could use all the help I can get.

He was so relaxed that his hands were behind his back.

He is having his hands full with the new project.

He worked as a rear gunner in a fighter plane.