HER MOTHER, ____________ HAS BEEN WORKING FOR THIRTY YEARS, ITS RET...
8. Her mother, ____________ has been working for thirty years, its retiring next month.
A. that
B. whose
C. who
D. whom
8. Her mother, ____________ has been working for thirty years, its retiring next month.
A. that
B. whose
C. who
D. whom