Об­ра­зуй­те от слова POSSIBLE од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

А major breakthrough in crossword puzzle development came with the personal computer. Although many computer specialists used to say that it was ______ for a computer to create a crossword puzzle, software was developed which allows any person to construct their own crossword puzzles.