自从毕业后，他们就没见过面。
__________________________________________
They haven’t met/seen each other since they graduated/ left/finished school ./They haven’t met/seen each other since graduation.
【详解】此句是 since 引导的时间状语从句，主句用现在完成时，从句用一般过去时。 they“ 他们 ” ； meet/see“ 遇见 ” ； each other“ 互相 ” ； graduate“ 毕业 ”/leave/finish school“ 毕业 ” 。 since 后也可以直接加名词 graduation“ 毕业 ” 。故填 They haven’t met/seen each other since they graduated/left/finished school./They haven’t met/seen each other since graduation.
B
C
D
means______. 
B
C
D
