. Over our lifetimes, this comes to roughly31½ years out of the 45 years most of us spend (41) _______ , from the beginning of our careers until retirement.
Over our lifetimes, this comes to roughly31½ years out of the 45 years most of us spend (41) _______ , from the beginning of our careers until retirement.
A. to work
B. work
C. worked
D. working