- 试题详情及答案解析
- The possibility of a murder _____, the police have set about looking for the clues to her suicide.
| A．to be ruled out | B．to rule out |
| C．having ruled out | D．having been ruled out |
- 答案：D
- 试题分析：考查独立主格结构。句意：谋杀的可能性被排除之后，警方已经着手寻找她自杀的新线索了。The possibility of a murder是非谓语动词的逻辑主语，与rule out是动宾关系，即可能性被排除，应该用被动语态，排除B、C；分词的完成式可以表示时间、原因等，相当于一个状语从句，这里相当于After/Because the possibility of a murder was ruled out，故选D。
考点：考查独立主格结构