task

说实话，交给我们的任务非常容易。

To be honest, the ___task we were given was incredibly easy.

独自组织整个会议是一项具有挑战性的任务。

Organizing the entire conference by myself was a challenging ___task.

老师给我们布置了周末写一篇短篇小说的任务。

The teacher gave us the ___task of writing a short story over the weekend.