ThebigfireinShanghai,believedto
来源：语文精选馆 1.98W
问题详情：
The big fire in Shanghai, believed to ________ due to the burning of construction materials, caused 58 deaths and destroyed all the belongings of the people there.
A. have occurred B. occur C. have been occurring D. be occurring
【回答】
A
知识点：现在完成时及其被动式
题型：选择题
