题目内容
【题目】The killer insisted that she was de-fending herself when __________.
A. attacking
B. attacked
C. to attack
D. having attacked
【答案】B
【解析】句意:杀人犯坚持说当受到攻击时她只是在正当防卫。when后面完整的句子是when she was attacked,按照状语从句的省略原则,省略与主句相同的主语she和be动词was。
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