The elderly Russians find it hard to live ______ their state pensions.A．onB．throughC．withD
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The elderly Russians find it hard to live ______ their state pensions.
A．on
B．through
C．with
D．up to
请帮忙给出正确答案和分析，谢谢！
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正确答案：A
介词固定搭配题。liveon意为“以……为主食，靠……生活”，故A为正确答案。livethrough“渡过，经受过”；livewith“与……住一起”；liveupto“履行，做到”。