- 问题详情:Everyday,IdrivehomealongColoradoBlvd,awidestreetwithfourlanesoneachsideofthemedian(*分隔带护栏).IalwaysnoticeahomelessmanstandingonthecornerofColoradoBlvd,(16) forsparechangewithasigninhishand.LastMonday,whenIwas(17) him,hesuddenlythrewdownhissign...
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