Standard English is the variety of English which is usually used in print and which is normally taught in schools and to non-native speakers learning the language. It is also the variety which is normally【C1】______by educated people and used in news broadcasts and other【C2】______situations. The difference between standard and nonstandard, it should be noted, has【C3】______in principle to do with differences between formal and colloquial【C4】______ standard English has colloquial as well as formal variants. 【C5】______, the standard variety of English is based on the London【C6】______of English that developed after the Norman Conquest resulted in the removal of the Court from Winchester to London. This dialect became the one【C7】______by the educated, and it was developed and promoted【C8】______a model, or norm, for wider and wider segments of society. It was also the【C9】______that was carried overseas, but not one unaffected by such export. Today,【C10】______English is arranged to the extent that the grammar and vocabulary of English are【C11】______the same everywhere in the world where English is used【C12】______among local standards is really quite minor,【C13】______the Singapore, South Africa, and Irish varieties are really very【C14】______different from one another so far as grammar and vocabulary are【C15】______. Indeed, Standard English is so powerful that it exerts a tremendous【C16】______on all local varieties, to the extent that many of long-established dialects of England have【C17】______much of their vigor(活力)and there is considerable pressure on them to be【C18】______. This latter situation is not unique【C19】______English. it is also true in other countries where processes of standardization are【C20】______. But it sometimes creates problems for speakers who try to strike some kind of compromise between local norms and national, even supranational(跨国的)ones. 【C1】