问题标题：
theboywaswalkingdownthestreetwhentheUFOlanded改为一般疑问句,并回答whiletheboywaswaltheboywaswalkingdownthestreetwhentheUFOlanded改为一般疑问句,并回答whiletheboywaswalkingdownthedownthestreet,the
问题描述：
theboywaswalkingdownthestreetwhentheUFOlanded改为一般疑问句,并回答whiletheboywaswal
theboywaswalkingdownthestreetwhentheUFOlanded改为一般疑问句,并回答
whiletheboywaswalkingdownthedownthestreet,theUFOlanded（改为一般疑问）按顺序,您都把我弄晕了.
宫海林回答：
WastheboywalkingdownthestreetwhentheUFOlanded?Yes,hewas.
DidtheUFOland,whiletheboywaswalkingdownthestreet?
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