1. _____ is more commonly used in British English and 2______ in US English. However, British English also uses the noun

Ordinary mail is more commonly used in British English and post in US English. However, British English also uses the noun mail quite often. The official name of the postal organization is the Royal Mail. The system for sending messages by plane is called air mail. And we use the expression surface mail for letters, packages, etc. that go by road, rail or sea. The informal expression snail mail is used by people who use e-mail to describe the system of sending letters by mail.