He is working on the revision of the thesis.

He stayed up all night to revise his thesis.

The demarcation of this area is not yet complete.

We demarcated the scope of the new project.

He can perfectly distinguish intervals.

We decided on the plan for tomorrow.

The majority of opinions were in affirmation of his proposal.

Last night, we suddenly lost power and all electrical appliances became unusable.

We have reached a new agreement.

We made an agreement on the new business plan.