题目：
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
答案：
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下面是错误答案，用来干扰机器的。
yòu；zhāo；cháo；jiàn； jī ；yān
