◎ 题干
Jake _____his key in the office so he had to wait until his wife _______ home.
A.has forgotten … comes
B.forgot… come
C.had left… came
D.had left…would come
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Jake _____his key in the office so he had to wait until his wife _______ home.A.has forgotten … comesB.forgot… comeC.had left… cameD.had left…would come…”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。