It’s been two weeks since the body was found, but the police have so far been unable to ___ who the victim is, let alone arrest the murderer.
Aascertain正確答案
Bdemonstrate
Cinvestigate
Djustify
答案與詳解
ascertain 意為「查明、確定」,常與 identity、truth、facts 搭配。句意為警方無法「查明」被害人身分,完全符合。
