All ______ is a continuous supply of the basic necessities of life.

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问题 All ______ is a continuous supply of the basic necessities of life.

选项 A、what is needed
B、for our needs
C、the thing needed
D、that is needed

答案D

解析 根据句子结构,我们可以看出,题目中句子结构完整,可以填入的只能是起修饰或辅助作用的成份,如定语或状语,D为正确答案,that is needed 在这里作定语,修饰先行词all。A错误,what不能引导定语从句,只能引导名词性从句。虽然 all the thing needed 符合句法(needed 是过去分词作定语修饰thing),但是被all修饰的可数名词一般要用复数。
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