The cab rolled away while Mann was giving his destination.

Half a minute later, the cab rolled slowly along the narrow street that Hood had taken.

The answer came, however, when a parked cab pulled suddenly from the curb and rolled away.

It was a short wait; the cab rolled up and the door opened.

His quick eyes noted an avenue ahead of the side street along which the cabs were rolling.

While the two were wondering about the next move, a cab rolled into the deserted street.

The cab eventually reached a dark street and rolled slowly along it.

As Harry's cab rolled away, the watching man came into the light.

He was set, with one hand on the door handle, when the cab rolled to a stop near the theater.

When his cab had rolled away I went back to my study and sat thinking for awhile.