The storm ___ (destroy) the sandcastle that we ___ (build)
The storm destroyed the sandcastle that we had built
I ___ (write) articles on various topics before he ___ (help) me.
I had written articles on various topics before he helped me.
I ___ (lose) so much weight because I ___ (start) to exercise.
I lost so much weight because I had started to exercise.
I ___ (never/meet) anyone from California before I ___ (meet) Jim.
I had never met anyone from California before I met Jim.
I ___ (call) his office but he ___ (already/ leave).
I called his office but he had already left.
We ___ (not/ prepare)at all before we ___ (take) that test.
We hadn't prepared at all before we took that test.
My sixteenth birthday ___ (be) the worst day I (ever/have).
My sixteenth birthday was the worst day I had ever had.
I was sorry when the factory ___ (close). I ___ (work) there for ten years.
I was sorry when the factory closed. I had worked there for ten years.
