All____is needed is a supply of oila.what is needed b.that is needed c.the thing is needed d.for their needd错在哪里,怎么改才对? 英语
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【答案】 必须指出：你的问题本身有错.原句必须删掉is needed
只有答案b 正确：all that is needed = all (that) they need that 是个 关系代词引导定语从句修饰先行词all）；
答案 d 错在：for their need 是个介词短语-- 为了他们的需要,在句中只能用作状语；而原句只缺一个修饰all的定语