Before agriculture _____, people made their living by hunting wild animals and their life
was _____ of nature.

A. came into being; at the mercy
B. was born; in the mercy
C. began to exist; in danger
D. appeared; with the mercy
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科目：高中英語 來源：同步題 題型：單選題

Before agriculture _____, people made their living by hunting wild animals and their life
was _____ of nature.
[     ]
A. came into being; at the mercy
B. was born; in the mercy
C. began to exist; in danger
D. appeared; with the mercy

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