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,题目中旬子结构完整,可以填入的只能是起修饰或辅助作用的成分,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,例如:We should not criticize Jane for all that she has done.Instead,we ought topraise her for it.对简所做的一切我们不应批评,相反,应当为此表扬她。All that glittersis not gold.闪光的并不都是金子。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,例如:Her illness has puzzled all the doctors.她的病把所有的医生都难住了。All the students take part in extracurricular activities.所有的学生都参加课外活动。
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