In Jokes^x, Pronouns^x, Expressions^x

Technically, at doesn't refer to anything. at is not a referring expression. Generally, only nouns and pronouns can refer.Nevertheless, I understand what you're saying. Here at means 'upon hearing' or 'when I heard' or 'as I heard' or 'in reaction to' or...

Dear madam / sir, Being possessor of an exploitation right concerning an innovating technology of communication described below, I solicit your attention in order to know if any utilization would eventually interest you. Kind regards, (letters into brackets are readable with a phonetic...

How To Learn English ? PART 2 Learning a language is mainly based upon self-struggle. Maybe the only thing to be done by the teachers on this subject is to advise a method. Because, in a sense, language cannot be taught but learned. So, it’s suitable that the students are shown ways to...