11.   And when the gun went off, the Sonics were left in the blocks.

12.   And when the gun went off, the Sonics were left standing.

13.   As the gun went off, the yachts crossed simultaneously.

14.   As two prisoners were being interviewed outside a military base on Saturday, a gun suddenly went off.

15.   As toy guns go, he thought it was pretty innocuous.

16.   As the beating continued, he said, the gun went off.

17.   As they were leaving, the gun went off, killing Clay, police said.

18.   At table after table, large parties of men wear the determined expressions of athletes waiting for the starting gun to go off.

19.   At the trial, Bright said his gun had gone off accidentally.

20.   At that point, a gun went off and Stahl was shot in the head.