题目内容：

It is said that in Australia,there is more land than the government konws____.
A what to do with
B what to do with it
选B
为什么要加it ?

优质解答

据说,澳大利亚有许多政府不知道怎样利用的地方
(what to do) with it
what 做do 的宾语
it 做 with宾语