1.   A gun went off, and I heard a scream of fear from inside the room.

2.   He has half an eye on where the gun went.

3.   The starter called us to our Marks, we got set, the gun went off and I dawdled on the blocks.

4.   You can synchronise your digital watch with the countdown to ensure you start exactly as the gun goes.

5.   Gillespie claimed that the gun went off accidentally during a struggle.

6.   The gun went off and the bullet went flying over his head.

7.   She claimed that the gun went off accidentally.

8.   Is there any way the gun could then go off in that?

9.   And the gun went off.

10.   And then the gun went off.