——what about protection -----Let' s keep the surface ___durty by putting a cover over it .A farA.far from B.free from C.apart from D.away from

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——what about protection -----Let' s keep the surface ___durty by putting a cover over it .A farA.far from B.free from C.apart from D.away from

——what about protection -----Let' s keep the surface ___durty by putting a cover over it .A farA.far from B.free from C.apart from D.away from
——what about protection -----Let' s keep the surface ___durty by putting a cover over it .A far
A.far from B.free from C.apart from D.away from

——what about protection -----Let' s keep the surface ___durty by putting a cover over it .A farA.far from B.free from C.apart from D.away from
b.free from.
dirt不是durty

- -怎么样保护? -----我们通过投入盖子盖住它保持表面durty。

选B.
keep away from 之间不能插入任何成分,比如:Keep away from cold;而keep free from 可以插入宾语在keep 之后,比如:We put our books in bookcase to keep them free from dust

选 B. free from ,有使摆脱、使脱离,免受等意思。

B.durty拼错了 是dirty
free from dirty表示清洁,干净,一尘不染等意思
free from:免于;摆脱;不受。。。影响
far from:远离;远非
apart from:除了
away from:远离

选B