国家开放大学 / 综合英语（1）
正确率：100%
All _ _ _ _ is a continuous supply of the basic necessities of life.
a.our needs
b. what is needed
c.the thing needed
d.that is needed
a.our needs
b. what is needed
c.the thing needed
d.that is needed
参考答案：
佳题速递：