Jackson has worked in the bank＿＿he left school. A.when B.sin

Uncle Tom has worked as a teacher __ he left school in 1999. He has worked very hard__he left school.A.for B.befor C.sinc tom has been in the factory --- he left school.a.since b.as A:where is you school?B:It's __ the left of the bank.(in at Tom has been in this company ___he left school. A. when B. s Tom has been in the factory _____ he left school. When he arrive at the station,the train______.A,has left B,l 16.He has worked in this school for many years,_______ he?A. ___the left ____the school is a bank. A.In,of B.On,of C.At,o he has a good() in a bank 1.---he has worked in the school for several years is known I got my best g___ when I left school.--He has passed the ex