Upon Queen Victoria's death, Beatrice began the momentous task of transcribing and editing her mother's journals, which had been kept since 1831.

Turning from the doorway, The Shadow moved silently inward, to proceed with his momentous task.

A momentous task indeed.

"But why should you be selected for so momentous a task?"

But fate did not spare him for this momentous task.

He kept reminding himself that he was engaged in a momentous task.

In view of the momentous task before this committee, let us proceed directly to matters at hand.

The war in Iraq has officially ended, but the momentous task of recreating a new Iraqi nation seems hardly to have begun.

I am going to ask now that we, all of us, gather round them and lay hands on them, commissioning them for this momentous task.

The human frailties included the momentous task that faced McIver.