◎ 题干
__________ did your uncle leave his hometown ?
He _________ for nearly 20years .
A.When , has leftB.When , has been away
C.How long , has leftD.How long , has been away
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“__________ did your uncle leave his hometown ? He _________ for nearly 20years .A.When , has leftB.When , has been away C.How long , has leftD.How long , has b…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。