She used to be a prostitute, but now she has started a new life.

He was hiding the fact that he was an illegitimate child.

I'm sorry, but I don't speak Japanese.

I'm a Muslim, so I fast during Ramadan.

I'm Jewish.

Katoriki is a rare name, isn't it?

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

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.