In 1939 two brothers,Mac and Dick McDonald,started a drive-in restaurant in San Bernadino,California.They carefully chose a busy corner for their location.They had run their own businesses for years,first a theater,then a barbecue（烤肉）restaurant,then another drive-in.But in their new operation,they offered a new,shortened menu:French fries,hamburgers,and sodas.To this small selection they added one new idea:quick service,no waiters or waitresses,and no tips.
