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it is necessary that people both young and old in china ----some English to be prepared for the Olumpic games to be held in Beijing in 2008....

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回复(1) 2011-06-30 01:47 来自版块 -

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: teacherlucas111：选A，考查虚拟语气， necessary是虚拟形容词，后面的从句要用should+动词原形，同时should可以省略。(2011-06-30 21:17)

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