31.   My tunnel of filling was near the top, but this cake knocked my socks off.

32.   Previous explanations had been based on the assumption that the tunnels were entirely man-made.

33.   Since the tunnels are passageways for foraging for food, they may not be occupied for long, and pressing down the mounds may be permanent.

34.   State Fire Marshal Donald Bliss said that no tunnels had been uncovered as yet, but that some trenches had been found on the Connecticut River site.

35.   The Alpine tunnels have been a bottleneck for transportation for years.

36.   The Brenner tunnel is to be a joint effort of Austria, Italy and Germany.

37.   The center tunnel is gone, thanks to a repackaging of the underbody parts.

38.   The curving, dripping tunnel was hundreds of yards long and pitch-black for most of its length.

39.   The mine is really just a quarry, a clearing that is pockmarked with pits, and there are no tunnels.

40.   The rail-harbor tunnel may be another case in point.