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。
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。