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

At a major conference in 2008 they were still __________________ to agree on whether to count Pluto as a planet. This debate continues.