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强调句变型特殊疑问句Whowasitthatpickedupabookyesterday?在句首加上Iwondered后的句子怎么写?涉及哪些知识点.

题目详情
强调句变型
特殊疑问句Who was it that picked up a book yesterday? 在句首加上I wondered后的句子怎么写?涉及哪些知识点.
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答案和解析
I wondered who it was that picked up a book yesterday.从句后的语序要用顺序语序,'it is/was sb that do/did/have done sth'为强调句式.