We decided to extend the deadline of this project.

He kept talking on and on.

He kept talking on and on.

The mountains continue on and on.

That proposal is completely unthinkable.

As a practical question, how are we going to fund this project?

He is observing stars at the observatory.

A new approach is needed to solve this set of problems.

Please go ahead and save a seat.

I don't know what lies ahead in life.