1 It is said in australia there is more land than the govern

1 It is said in australia there is more land than the government knows what to do what it.2 I've worked with children before,so i know what to expect in my new job.3 The question was whether to take the children to the theatre or to leave them at home.4 Once they decide which college to go to,students should research the admission procedures.这四个题是不是都是Wh-+to do 做宾语(特别是第四题,不确定),那为什么有的介词后有宾语(如第一题的Do with 后的it),而有的没宾语(如第四题go to 后边什么也没有) 希望分析一下句子成分,
1中打错了，宾语部分应该是What to do with it (do with是短语，译为“处理”