【单选题】

StandardEnglish is the variety ofEnglish which is usually used in print and winch is normally taught in schools and to non-native speakers leaning the language. It is also the variety which is normally (71) by educated people and used in news broadcasts and other (72) situations. The difference between standard and nonstandard, it should be noted, has (73) in principle to do with differences between formal and colloquial (74) ; standardEnglish has colloquial as well as formal variants.

(75) , the standard variety ofEnglish is based on the London (76) ofEnglish that developed after the NormanConquest resulted in the removal of theCourt from Winchester to London. This dialect became the one (77) by the educated, and it was developed and promoted (78) a model, or norm, for wider and wider segments of society. It was also the (79) that was carried overseas, but not one unaffected by such export. Today, (80) English is arranged to the extent that the grammar and vocabulary ofEnglish are (81) the same everywhere in the world whereEnglish is used; (82) among local standards is really quite minor, (83) the Singapore, SouthAfrica, and Irish varieties have very (84) difference from one another so far as grammar and vocabulary are (85) . Indeed, StandardEnglish is so powerful that it exerts a tremendous (86) on all local varieties, to the extent that many long-established dialects ofEngland have (87) much of their vigor and there is considerable pressure on them to be (88) . This latter situation is not unique (89) English: it is also true in other countries where processes of standardization are (90) .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.
A．formal
B．colloquial
C．non-standard
D．standard