题目内容
【题目】While he _________ the robbery at the bank just now, he couldn’t give any informative evidence to help with the investigation.
A. claimed to witness
B. claimed witnessing
C. claimed having witnessed
D. claimed to have witnessed
【答案】D
【解析】
试题分析:考查固定短语。claim to do…声称…,且声称的内容是已经发生的事,故要用完成时态,句意:尽管他声称刚才在银行看见了劫匪,但他不能给出具体证据来帮助调查。故选D
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