Question

求高手解析这道英语题

The big fier in Shanghai ,believed____due to the burning of construction materials ,caused 58 deaths and detroyed all ehw belongings of the people there.
A.To have occoured B.to occour C.having been occouring D.occouring
那个A和B有什么区别？？？？
另外那个due to在这充当什么成分，它不是一般接在be动词后面吗

Answer 1

答案：选A。此处believed to have occured due to the burning of construction materials 为过去分词短语做非限制性定语，对先行词fire加以补充说明，可转化为非限制性定语从句which was believed to have occured due to the burning of construction materials 。此处使用完成式表示动词【occur】的动作发生在believe之前。若用B则强调在其后发生。
due to一般用在be动词之后做表语，但实际运用中也可以用来作状语。
如：1）She has been absent from work due to illness.
2）The workforce was reduced, partly due to budget pressures.
3）He arrived late due to the storm．他由于暴风雨而来迟了。

Answer 2

时态不同，A是完成时态，B是普通的不定式，应该选A吧

追问

那为什么选A？？？

追答

简单的说因为这里发生的事情已经结束并且对现在有影响

Answer 3

b