根据魔方格专家分析，试题“The diamond mine _______ accidentally by a little boy when he was playing hide-and-seek. [ ]A. discovered B. was discovered C. has been discoveredD. would d…”主要考查了你对  【一般过去时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”，你可以点击相应的链接进行查看和学习。

与“The diamond mine _______ accidentally by a little boy when he was playing hide-and-seek. [ ]A. discovered B. was discovered C. has been discoveredD. would d”考查相似的试题有：