到底会是谁拿走了那幅画？
Who could have taken the painting?
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Could英 /kʊd/|美 /kʊd/
解释
could have taken 用于 wh-疑问句中。who 作为疑问主语，could 表达过去可能性的推测，have + taken 构成完成式。整个疑问结构询问过去动作的可能执行者。
Who could have taken the painting?
could have taken 用于 wh-疑问句中。who 作为疑问主语，could 表达过去可能性的推测，have + taken 构成完成式。整个疑问结构询问过去动作的可能执行者。