He_______just before the concert started.
The light will be thrown ______ the cause of cancer by research that is now in progress.
—Why was he unhappy yesterday? —A letter from home ______ an attack of homesickness.
______great progress Jim had made in _______ time!
When I wanted to buy a computer, I saved as much as I could, and my mother the rest of the money.
---I hear Mary is in hospital ---Oh, really? I know, I go to visit him.