1.   He threw a rock down it but you could not hear it strike the bottom ....

2.   The watchdog would back off if you threw rocks at him.

3.   This is the same as when you throw a rock in a pool of water.

4.   You could throw a rock from Paramount and it would land in Hollywood Memorial.

5.   Throw the rocks over the side of the boat.

6.   Any one of a very large number of ways of throwing rocks together would be labelled a mountain, and might have been named Mont Blanc.

7.   The crowd threw a few rocks and dispersed.

8.   Among other nonhuman primates, only chimpanzees have been seen on rare occasions throwing rocks into water to make a display.

9.   Among the dead from the fighting are Palestinian children who were passing by or throwing rocks at troops.