All __________is a continuous supply of the basic necessities of lif-考呗网题库移动版

单选题 All __________is a continuous supply of the basic necessities of life．

A．what is needed
B．for our needs
C．the thing need
D．that is needed

参考答案D

解析: D。所需要的是对生活必需品的持续供应。
考查定语从句。首先，句子的主语为all，空格部分引导的只能是定语从句而非主语从句；其次，先行词为all时，定语从句关系代词用that而不用which。

单选题 There ought to be less anxiety over the perceived risk of getting cancer than __________ in the public mind today．

A．exists
B．exist
C．existing
D．existed

单选题 __________ is the center of our planetary system was a difficult concept to grasp in the Middle Ages．

A．It is the sun and not the earth
B．Being the sun and not the earth
C．The sun and not the earth
D．That the sun and not the earth

单选题 Hydrogen is the fundamental element of the universe __________it provides the building blocks from which the other elements are produced．

A．so that
B．but that
C．in that
D．provided that