81.   His mother, Harriet, performed as a hobby with a local stock company and insisted that all her children take music and dance lessons.

82.   Her brothers had performed as a trio, and Mendoza began performing duets with her sister, Perla.

83.   How will Tung perform as chief executive?

84.   I could see it the first day I saw him perform as a comic.

85.   I found that all three products performed as advertised.

86.   If the prototype performs as expected, the Air Force plans to buy seven airborne laser systems.

87.   In a year, Ben Folds Five has graduated from small clubs to arenas, where it has been performing as an opening act for the Counting Crows.

88.   In one exercise the class is given a rhythm, each student calls out a step, and the sequence of steps is performed as a dance routine.

89.   In others, guarantees expired worthless because the underlying stock performed as promised.

90.   In the end, whether or not light rail performs as planned, it still is one of the hottest big-ticket items that cities are chasing today.