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

People think that accountancy involves working all day long with numbers and that it is really boring. But they could not be more wrong. My work is exciting, challenging, varied and both personally and professionally rewarding. Being involved with the ______ world is also, at times, really good fun.