这句话里的is being为什么用错了?要怎么改?After 140years under the sea,the remains of the Monitor,an ironclad warship that was sunk during the Civial war,（is being） gradually brought to the surface.
网友回答
用has been现在完成时
======以下答案可供参考======
供参考答案1:
两个be动词怎么能放在一起用呢? 应该用has been
供参考答案2:
is 和being 都是be动词，不可以放在一起
现在完成时应该是have/has+过去分词
所以改成has been