In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
........(1)........so long ago, virtually everyone seemed .........(2).......that a sizeable majority of British voters ........(3)........ reaffirm their faith and confidence in a united Europe. Unfortunately, what was considered to be a remote possibility has actually become a very ........(4)........reality. A small majority of voters ........(5)........ to take Britain out of the European Union (EU) in the referendum held on June 23.