A predicate head may be accompanied by an article or demonstrative followed by an adverb or adjective. These adverbial adjuncts are typically situated finally in a clause and are differentiated from simple adverbs by the presence of an article or demonstrative. (Suttles, 2003, p. 76)
Suttles, W. (2004). Musqueum reference grammar. UBC Press. SFU Student Access.