Theteachertoldusthefact_______.

MarkTwain’sparticularconcernaboutthelocalcharacterofaregioncameaboutas“localcolorism,”auniquevariationofAmericanliterary().

Accordingtothe"principles-and-parameters"theory,"principles"refertohighlyabstractpropertiesofgrammarwhichareappliedtolanguageingeneralandwhichgeneratephrasesandatthesametimerestrainthepowerofMovea,while"parameters"allowgeneralprinciplestooperateincertainrestrictedways,accordingtowhichparticulargrammarsofnaturallanguagesvary.

ModernEnglishvocabularydevelopsthroughthefollowingchannelsEXCEPT______.

Thisisanimportantproblem_______toofewsocialscientistshaveresearched.