MY FRIEND ……… ME FOR MANY YEARS WHEN I ……… HIM LAST (WHEN +...

31. My friend ……… Me for many years when I ……… him last

      (when + Simple Past, Past Continuous); (Past Continuous + when + Simple Past; Simple Past+ when + Past Continuos)

a. haven’t seen/ met       b. hadn’t seen/ met

c. hadn’t seen/ meet       d. didn’t see/ meet