Select the option that expresses the given sentence in passive voice.
Someone stole his traveller's cheques when he was travelling in Europe.

Options

A. Someone had been stole his traveller's cheques when he was travelling in Europe.
B. His traveller's cheques was stole when he was travelling in Europe.
C. His traveller's cheques are stole when he was travelling in Europe
D. His traveller's cheques were stolen when he was travelling in Europe

Answer

D