Theothertimingsystembelongsinourinternalclocks，which，left________，wouldtiethebodytoa25-hourrhythm.

ModernEnglishwordsman,woman,child,eat,fight,etc,originatefrom______.

InclassifyingtheEnglishconsonantsandvowels,thesamecriteriacanbeapplied.

EmpiricalstudiesshowthattheprocessofSLAisaprocessofconstructingandmodifyingrulesofcommunication.

_______isafactthatEnglishisbeingacceptedasaninternationallanguage.