要全面、准确的.How long--he--his home For about two weeks.A did; le

D 正确
A,B,C 中 leave 均是短暂性动词,不能接一段时间.
A和C只能用这样的表达When did he leave his home?
Has he left his home?
B 项没有这样的表达.最多只是He is leaving his home.