How to use this site
Adult learners of English, this site is at an advanced learners' level of English. Chatting on the internet or world wide web will NOT improve your English. Language used by native speakers of English on the internet is at an extrememly advanced level, it is frequently spelled badly and it is a combination of written and spoken language found nowhere but on the internet.
When writing email to a business or of a commercial nature, use standard written formal language.