he wrote a book

He wrote a book in China.

Il a écrit un livre en Chine.

He wrote a book on China.

Il a écrit un livre sur la Chine.

He wrote a book while in China.

Il a écrit un livre pendant son séjour en Chine.

He wrote a book after he retired.

Il a écrit un livre après avoir pris sa retraite.

— Article 15 (2019)

He wrote a book about his adventures in the jungle.

Il a écrit un livre sur ses aventures dans la jungle.

He wrote a book based on an idea which he borrowed from his wife.

Il a écrit un livre basé sur une idée qu'il avait empruntée à sa femme.