I can't _____lend you so much money,I wonder if you can return it in time when it is needed.1）用possibility的适当形式填空,说明理由2）need不是没有被动语态吗?怎么这里用被动?3）possible和possibility做名词时的区别答案是possibly,说下理由哈,还有另外两个问题

I can't _____lend you so much money,I wonder if you can return it in time when it is needed.
1）用possibility的适当形式填空,说明理由
2）need不是没有被动语态吗?怎么这里用被动?
3）possible和possibility做名词时的区别
答案是possibly,说下理由哈,还有另外两个问题