Formula help required multiple if

Close-CSK, Close-making, open-tax, pending-ask

Above are text I have in my data, I need to change the text before hypen to "closed" for all.

My formula : IF (OR (MID (A2,1,4)="Close"),REPLACE (A2,1,5,"Close"),REPLACE (A2,1,4,"Closed"))

Except Pending-ask all text are changing 

I need to change that one as well my output should exactly like this "Closed-ask"