Dear Mark,
I'm on a dig in ancient Roma.The ancient Romans had houses with central heating.The ancient Romans made a lot of laws.The ancient Romans went to see gladiators'fights.The ancient Romans built good roads.The ancient Romans built public baths.The ancient Romans didn't took part in the Olympic Games.The ancient Romans went to the theatre.The ancient Romans had a strong army.
Looking forward to seeing you.
Best wishes,Твоё имя(точку после имени не ставят)