问题补充：
Andy has for five years. Five years a long time.
A .left home, is B been away from home, is
C. left home, are D been away from home, are
答案：
解析：考查现在完成时和主谓一致。短暂性动词不能与一段时间连用，必须转换为状态性动词，leave/go转换为be away；five years是一段时间，排除A、C；当时间、金钱、距离等作主语时，常看作单数，谓语用is。句意“安迪离开家已经五年了，五年是挺长的一段时间。”故选B。
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