79. Despite his ______ desire to show off, he remained at heart a very ______ person.
A. uncharacteristic, demonstrative
B. inexplicable, hedonistic
C. occasional, reticent
D. continual, transparent
E. blatant, exhibitionistic
80. The employer blamed the staff member's lack of productivity on ______ rather than incompetence, claiming that the man knew how to do his job but was too lazy to apply himself.
A. infatuation
B. tension
C. indigence
D. indolence
E. ineptitude