It is our duty to help those in need.

Everyone is to attend the meeting without fail.

The bulk of the work is already done.

The bulk of the work was completed by the team.

The bulk of the work has been completed.

The bulk of the work was done by the volunteers.

The bulk of the work was done by the volunteers.

The bulk of the work is done by the machinery.

The bulk of the work is already done.

The bulk of the work has been completed by the team.