Suddenly
No, "fell" is not a pronoun. It is a verb that means to drop or descend suddenly.
Because they are tired
Suddenly, the casket fell out of the hearse!
Because he fell in love with Loni Leisegang.
A Fell pony can live any where except the cold.
A Fell pony can live any where except the cold.
Do they feel the cold. Yes.
No, "suddenly" is an adverb that describes how an action is carried out or when something happens. It is not a linking verb, which connects the subject of a sentence to a subject complement that describes or renames it.
Suddenly Susan - 1996 Cold Turkey 1-9 is rated/received certificates of: Argentina:Atp
It was a great afternoon, a cow suddenly appeared and ran toward a treeWas greatIT WAS A CLEAR NIGHT WHEN SUDDENLY A COW FELL FROM THE SKYwas, clear
The temperature suddenly dropped and the room got cold, very cold.