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WhenIcrossthestreet,Iseetwoboysthere空里填什么WhenIcrossthestreet,Iseetwoboysthere空里填什吗跪求!!!

题目详情
When I cross the street,I see two boys____ there空里填什么
When I cross the street,I see two boys____ there空里填什吗跪求!!!
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答案和解析
see sb.doing/do sth.,
When I cross the street表示一个时间点,所以用doing,即你所说的playing