Have them back before dark, and keep a sharp lookout.

You get to the house and keep a sharp lookout.

Fine, so all you need to do is keep a sharp lookout.

Keep a sharp lookout for the next hour to the east.

Everyone needs to keep a sharp lookout in case they come back.

One of the rules out here is to keep a sharp lookout at all times.

The rest of you stay here, but keep a sharp lookout."

I dare say there is, Doctor, if you keep a sharp lookout.

Actually, he was keeping a sharp lookout for possible spies.

I had to keep a sharp lookout when she was in the pilothouse.

"We have to keep a sharp lookout for three mountain ranges," he said.

Hose in hand, I kept a sharp lookout for town trucks.

He called to me to keep a sharp lookout.

Then go up forward, and keep a sharp lookout.

Until then, keep a sharp lookout and be ready to respond."

Then he warned them again to keep a sharp lookout for airplanes, particularly to the west.

He kept a sharp lookout, making note of the landmarks they passed.

Fox kept a sharp lookout over the back road, searching for signs of anyone following them.

So keep a sharp lookout, and we'll all be rich men."

One man piloted the machine while he and the other kept a sharp lookout.

"Assuming he does, we will have to keep a sharp lookout for someone the right size in order to find him.

We must keep a sharp lookout for these fellows.

That means keeping a sharp lookout and not reducing sail at night.

Margo kept a sharp lookout and wished they could break into a run.

Then is when they forget to keep a sharp lookout for sharks and whales.