1.   The troops posted a lookout for the night.

2.   Lookouts were posted, and there were flights overhead to look for trouble.

3.   The arcades have adapted by posting lookouts and installing security cameras to watch for the authorities, he said.

4.   They posted lookouts for the occasional patrol car.

5.   Rebelling residents strengthened their roadblocks and posted lookouts on tall buildings.

6.   Troops had been on high alert, filling sandbags, posting more lookouts and wearing flak jackets.

7.   Compounding the shock was the discovery of the beached submarine by a passing taxi driver, not military lookouts posted along the beachfront.

8.   Compounding the shock was the fact that the beached submarine was seen by a passing taxi driver, not military lookouts posted along the beachfront.