information about what‘s happening is fed back into the robo

Information about what's happening is fed back into the robot to tell it ______ next.
A. how to do B. to do what
C. waht to do it D.what to do
我觉得是个宾语从句,可是宾语从句不会有do
选D. what to do next. 下一步该怎么办（做什么）是疑问不定式作tell it的宾语,相当于一个宾语从句：what it should do next.
A. how to do缺乏一个宾语（it）. C.多了一个it, what to do. 中to to 与what之间有逻辑上的动宾关系.B.是错误的疑问不定式（正确的应为wh-词+to+V)
感觉你的题干中少了一个to, 自作主张将它加进去了.大小写和标点也帮你改了.
我知道问题一发表就不能修改了.不象回答者,还可修改.

选 D what to do 和how to do it ，what 后面不能带宾语，只有how 后面才可以跟宾语it

选D

information about what‘s happening is fed back into the robot （and） tell it （） next
你漏了个and
how to do it
what to do
应该选D
望采纳没漏掉andinformation (about what‘s happening) is fed back ...

D
what做do的宾语，引导的是tell的宾语从句

选A