We know such people are not . A. to rely onB. to be relied uponC. to be reliedD. to rely u

We know such people are not .
A. to rely on
B. to be relied upon
C. to be relied
D. to rely upon

A. to rely on(答案→)B. to be relied uponC. to be reliedD. to rely upon解析：考察非谓语动词，people与rely on 是被动关系，排除AD，rely是不及物动词，需要与on搭配，故排除C句意为，我们知道，这样的人不值得我们信任。

感谢回答，我学习了