A.kibl B.bkil C.ilkb D.ilbk
A.the conventional nature of language B.the creative nature of language C.the universality of language D.the big difference between human language and animal communication
A.Linguistic taboo B.Euphemism C.Address term D.Slang
A.nasal B.oral C.lung D.glottis
A.vocal thought B.subvocal thought C.covert thought D.overt thought