Aboriginals used fire to keep their families ___ wild animals.A.away B.in C.off D.from

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Aboriginals used fire to keep their families ___ wild animals.A.away B.in C.off D.from
Aboriginals used fire to keep their families ___ wild animals.
A.away B.in C.off D.from

Aboriginals used fire to keep their families ___ wild animals.A.away B.in C.off D.from
D.from
keep...from...使…远离…
keep their families from wild animals:使他们的家庭远离野兽（也就是说,免受野兽侵袭）
句意：土著居民用点火这种方式来保护他们的家庭免受野兽侵袭.

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