[на 100% верно] Измените предложение согласно модели. The task in most cases is to facilitate interaction between a single user and a PC.

Делаю все виды заданий для ТУСУР! Обращайтесь!

Измените предложение согласно модели.

Model:

Their task is to maintain the temperature at 100 degrees.

Maintaining the temperature at 100 degrees is their task.

The task in most cases is to facilitate interaction between a single user and a PC.

... between a single user and a PC is the task in most cases.