how to paste together a vector element with the previuos according to a condition

I'm getting data from a web source with rvest and then I got a vector, say x, which has a length different from my other vectors (so I can't combine them into a table). Getting to the point: The reason is that everytime I see the element 'nuovo' (position x[11] ) in the vec, I know It should be pasted with exactly the previous, then i should also cancel out the element 'nuovo' because I need a 25 length vector.

x  = c("Vetrina" ,"Vetrina" ,"Vetrina",
"Vetrina" ,"Vetrina", "Vetrina",
"Vetrina" ,"Vetrina" ,"Vetrina",
"Vetrina" ,"nuovo" ,"Vetrina",
"Vetrina" ,"Vetrina" ,"Vetrina",
"Vetrina" ,"Vetrina" ,"Vetrina",
"Vetrina" ,"Vetrina", "Vetrina",
"Vetrina" ,"Vetrina", "Vetrina",
"Vetrina" ,"Vetrina")

length(x) = 26

and then I need x to be like:

x  = c("Vetrina" ,"Vetrina" ,"Vetrina",
"Vetrina" ,"Vetrina", "Vetrina",
"Vetrina" ,"Vetrina" ,"Vetrina",
"Vetrina nuovo","Vetrina",
"Vetrina" ,"Vetrina" ,"Vetrina",
"Vetrina" ,"Vetrina" ,"Vetrina",
"Vetrina" ,"Vetrina", "Vetrina",
"Vetrina" ,"Vetrina", "Vetrina",
"Vetrina" ,"Vetrina")

length(x) = 25