Early settlers their survival hard work and determination to succeed.
A. corresponded; with
B. owed ; to
C. adapted; to
D. attached; to
网友回答
A. corresponded; with
(答案→)B. owed ; to
C. adapted; to
D. attached; to
解析：词义辨析。Corresponded…with…和……相符合；owe…to…把……归功于……; adapted…to…适应……；attached…to附属于。句意：早期的移民把他们的生存归功于辛勤工作和成功的决心。所以选B。