My parents have promised to come to see me before I _________ for Africa.A.have left B.leave C.left D.will leave

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MyparentshavepromisedtocometoseemebeforeI_________forAfrica.A.haveleftB.leaveC.leftD.willleaveMypare

My parents have promised to come to see me before I _________ for Africa.A.have left B.leave C.left D.will leave
My parents have promised to come to see me before I _________ for Africa.
A.have left B.leave C.left D.will leave

My parents have promised to come to see me before I _________ for Africa.A.have left B.leave C.left D.will leave
答案B 考察时态.本题before后面仍然是一个时间状语从句,根据句意:我的父母答应在我去非洲之前来看我.用一般现在时代替将来时.查看原帖>>