YESTERDAY AFTERNOON WHILE MY MOTHER _______ FOR THE TAXI, THE SHOWER _______

7/ - SACH BT ANH 10 CO DAP AN
SACH BT ANH 10 CO DAP AN

7/ Yesterday afternoon while my mother _______ for the taxi, the shower _______.

A. waited-stopped B. was waiting-was stopping

C. waited-was stopping D. was waiting-stopped