Lyingundertheskull,thehumanbraincontainsanaverageoftenbillionnervecellscalled______.
We________goouttorestaurants,butmostlyweeatathome.
Well-arrangedsentencesareconsideredgrammaticalsentencesthatareformedfollowingasetofsyntacticrules.
Theconclusionfromthestudyisnotdefinite;itisjust________.