还问个英语语法问题新概念英语2册的水平有这样一句话Over a hundred people must have bee

还问个英语语法问题
新概念英语2册的水平
有这样一句话
Over a hundred people must have been driven away from their homes by the noise.
这句话变成主动怎么变?
我写出了2种答案 哪种是对的
(1)The noise must have driven over a hundred people away from their homes.
(2)The noise must have driven away over a hundred people from their homes.
哪一种是正确的?为什么?(very important)
away到底是什么词?(介词还是副词?)
from their homes.的语言成分是什么?
我赚到分了 狂谢 狂谢