他写了一本温斯顿·丘吉尔的传记。

He wrote a ___biography of Winston Churchill.

我找到了奥威尔的传记，所以买了它。

I found Orwell's ___biography so I bought it.

她正在读一本玛丽·居里的传记。

She is reading a ___biography of Marie Curie.