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

问题描述:

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 ?

据说,澳大利亚有许多*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