81.   A bomber was in the U.S. on a student visa, but authorities lost track of him until the bombing.

82.   A cluster of thunderstorms may erupt in Missouri and Illinois near the track of low pressure.

83.   A decade later, the clinic has lost track of some of its early donors.

84.   A broken band of light snow will fall to the north of the track of a low as it moves from the northern Plains to the northern Great Lakes.

85.   A large tree close to the entrance was voted our meeting spot if we lost track of each other.

86.   A preprogrammed set of projector routines is digitally encoded on four tracks of videotape.

87.   A really bad season is when you start to lose track of the difference.

88.   A team of faculty and students from the University of Alaska has uncovered tracks of five kinds of dinosaurs in the foothills of the Brooks Range.

89.   A windstorm is possible along the east slopes of mountains near the track of the storm in Colorado.

90.   A track of identical size was built next door for training the horses.