他们把钥匙放哪儿了？
Where have they put my keys?
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where英 /weə/|美 /wɛr/
They英 /ðeɪ/|美 /ðeɪ/
Put英 /pʊt/|美 /pʊt/
解释
have 是助动词，置于主语 they 之前构成疑问句；put 是不规则动词的原形-过去式-过去分词同形形式，与 have 构成现在完成时。where 作为疑问词询问位置。
Where have they put my keys?
have 是助动词，置于主语 they 之前构成疑问句；put 是不规则动词的原形-过去式-过去分词同形形式，与 have 构成现在完成时。where 作为疑问词询问位置。