- 试题详情及答案解析
- 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：A
- 试题分析：考查非谓语动词。be believed to do sth/that...被认为......，be believed to have done被认为做了某事，当不定式表示的动作与believe有先后关系时，应该用不定式的完成式，根据句意可知，大火已经发生，故选A。
考点：考查非谓语动词