在英语中，被动语态是一种常见的语法结构。如果你想把被动句转换为一般疑问句，那么你需要将助动词放到主语前面，同时将原来的主语变为动词的过去分词形式。下面是一些例子：
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被动句：The book was written by John. 一般疑问句：Was the book written by John? 回答：Yes, it was. / No, it wasn't.
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被动句：The concert will be held in the park. 一般疑问句：Will the concert be held in the park? 回答：Yes, it will. / No, it won't.
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被动句：The cake had been eaten before I arrived. 一般疑问句：Had the cake been eaten before you arrived? 回答：Yes, it had. / No, it hadn't.
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被动句：The movie was being watched by them. 一般疑问句：Were they watching the movie? 回答：Yes, they were. / No, they weren't.
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被动句：The letter has been sent to the wrong address. 一般疑问句：Has the letter been sent to the wrong address? 回答：Yes, it has. / No, it hasn't.
需要注意的是，当回答一般疑问句时，应该使用肯定或否定的形式回答，而且要保持与问题的时态一致。
现在你可以尝试将更多的被动句转换为一般疑问句，并回答它们。这将有助于你更好地理解英语语法结构，并提高你的口语表达能力。
