добрый день помогите пожайлуста составить вопросы what?when?where? why? who?к предложению People of the ancient Rome used letters for numbers. Спасибо

1.What did people of the Ancient Rome use for numbers?
2.When people of the Ancient Rome used letters for numbers?
3.Where did people use letters for numbers?
4.Why did people of the Ancient Rome use letters for numbers?
5.Who used letters for numbers?