"I'll just have to keep a closer watch on this fellow."

The new computer would also keep closer watch on five systems that are tracked by computers in cars today.

He warned them to keep closer watch over their children.

I decided to keep closer watch on our newest brother.

It was a pity that he could not keep a closer watch and a tighter hand on the boy.

We're going to keep a closer watch on the players.

Plots are usually hatched at night, so it's best to keep a closer watch then.

You really should keep a closer watch on your thoughts.

But I'll try to keep a closer watch on him.

It also meant he had to stay in Engineering and maintain a closer watch on a lot of different functions.