These two alarm clocks are normally set together, but now they have been reset a few hours _________.
C
but表示前后句子意思是相反的，所以前面说了settogether，后面提到的就是apart(分开)。
Theconclusionfromthestudyisnotdefinite;itisjust________.
Well-arrangedsentencesareconsideredgrammaticalsentencesthatareformedfollowingasetofsyntacticrules.
______movesonascaleofthenationallanguage,dialects,andindividualwaysofcommunication.