I'm Jewish.

Will you marry me?

"Do you want to have a meal? Take a bath? Or choose me?" she said jokingly.

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.

Cytology is a branch of biology that studies the structure and function of cells.

He is majoring in geology.

He is an expert in anatomy.

He is an expert in immunology.

He is an expert in ichthyology and has a deep knowledge of marine life.