UNIT 4CHOOSE THE BEST ANSWER TO COMPLETE EACH OF THE FOLLOWING SENTENC...

19. we / seen / left / haven’t / we / since / school / her // .

A. We left school school since we haven’t seen her .

B. We haven’t seen her since we left school .

C. We haven’t left shool since we seen her .

D. We left school since we haven’t seen her .