-more time, we will be able to put forward a better solution

_______more time,we will be able to put forward a better solution.
A give B to given C giving D being given
句子大意：如果给我们更多时间的话,我们将能够提出一个更好的解决办法.
很明显前后句是一个主语,但是we与give之间是被动的关系,应该用被动式,ABC都可以直接排除!选D就是对的!
句子补充完整应该是：If we are given more time,we will be able to put forward a better solution.