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allmybrotherwantedwastoplayvolleyball对不对标准答案是:allmybrotherwantedtodowasplayvolleyball这该如何分析

题目详情
all my brother wanted was to play volleyball对不对
标准答案是:all my brother wanted to do was play volleyball这该如何分析
▼优质解答
答案和解析
All my brother wanted to do was to play volleyball.
不定式作表语,其主语中含有do的某种形式时,其作表语的不定式可以省略to(亦即有do没有to,反之亦然)