Great changes___ have taken place _____ in the city, and a lot of factories________.
Only when she reached her office____ she had left her key at home.
---The president _____ by his doctor today that his cancer has come back.
_____ by the sun, they walked towards their destination through the woods.
Thompson had two ways, neither of _____ seems to have worked well.
As ____ journalist, she has always had _____ nose for a good story.