She told us she (be) to London twice
had been
She told me she (see) the accident
had seen
I was so fed up with him because he (ask) the same questios all over again
had been asking
I (wait) for three hours when she arrived
had been waiting
I thought we (walk) long enough and sat down
had walked
When I switched on the TV, I saw that Arsenal (already score)
had already scored
When I came home I was dead tired because (work) all day long
had been working
Rushing on to the platform, I noticed the train (already leave)
had already left
I never guessed she (travel) around for so many years
had been travelling
She (try) to call me all morning but I was out
had been trying
Before he became a teacher my father (work) with the Air Force
had been working
I explained that I (forget) my keys
had forgotten