Grammar
Tense: Past perfect ou Pluperfect continuous – Drills

( you/ to jog) before you sprained your ankle? 
They (to talk) on the phone for an hour before the call got disconnected.
He (not/ look) for a new job for very long when he received a job offer 
They (to play) tennis since morning before it started raining.
 They  (to date) for five years before they got engaged.
She (to teach) at the university for a decade before she retired.