— I hear the famous singer Xu Song may come to Weifang next month.— Really? he comes, my

— I hear the famous singer Xu Song may come to Weifang next month.
— Really? he comes, my younger sister will be very excited.
A. If
B. Until
C. Unless
D. Before

(答案→)A. IfB. UntilC. UnlessD. Before解析：在if 引导的时间状语中，if 引导的条件状语中，主句为一般现在时，从句用一般现在时，代替将来时，故选A

和我的回答一样，看来我也对了