31. Tobacco hornworm caterpillars emit short clicking sounds from their mandibles when they are being attacked. 32. The problem starts with a mysterious and persistent clicking sound coming from a Zip drive. 33. Several years ago I heard those clicking sounds . 34. As the skull's edge slides beneath and out from the coronet, a clicking sound is produced. 35. "I heard these clicking sounds , " she recalled. 36. Eland herds are accompanied by a loud clicking sound that has been subject to considerable speculation. 37. Q . My Zip drive sometimes makes a lot of clicking sounds when I use it. 38. When set to intermittent mode, the wipers make a disconcerting clicking sound each time they sweep. 39. Sperm whales emit a clicking sound that zips through the water and bounces off an object. 40. Clicking sounds and strange noises led Mark and Shannon to believe that their phone was tapped.
