①A Londoner has more difficulty understanding a Scotsman from Glasgow than understanding a New Yorker.
②Some experts believe that the two varieties are moving closer together.
③This international dimension suggests that in the future, there are going to be many “Englishes”， not just two main varieties.
④Users of English will be able to understand each other—wherever they are.
⑤Many factors have influenced American pronunciation since the first settlers arrived four hundred years ago.
