1.   Traffic began to peter out and they found themselves in the middle of extensive minefields.

2.   The lights changed to green and the traffic began to back up.

3.   Airlines reported that overall traffic had begun to improve, partly due to aggressive airfare discounting.

4.   But then domestic traffic began to grow, while La Guardia could not.

5.   Eventually, the protesters retreated and traffic began flowing again.

6.   Eventually the protesters retreated, and traffic began flowing again.

7.   Its anchors consolidated, leaving two department stores under the Robinsons-May badge, and traffic began to fall.

8.   My first hint that something was wrong was when the traffic in the opposite lane began to brake and swerve for no apparent reason.

9.   On the morning of the judicial finding, I expected the traffic to begin welling up again.

10.   That worked for a while, but when morning traffic began to build, a backup formed and many trains were diverted to other lines.