to save sb

to save paper ,we should use ____of it .A.both sides B.each sidesC.both side'sD.each side's

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第1个回答 2019-01-12

应该选A.句子意思是“为了节约纸张,两面我们都应该加以利用.
both后面接复数,表示”两者都“；each后面接单数,强调个体；C项和D项都是所有格,不符合句子语境.所以应该选A.

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