Prior to its evacuation Chernobyl was inhabited by 16,000 people but is now populated only by Zone administrative personnel and a number of residents who refused to leave their homes or subse
Prior to its evacuation Chernobyl was inhabited by 16,000 people but is now populated only by Zone administrative personnel and a number of residents who refused to leave their homes or subsequently returned.
A. after
B. while
C. when
D. before