Make up sentences. The old lecturer began to speak up. After a few minutes the dean came in. The old lecturer for a few minutes when . After half an hour of waiting Larry realized that he had been mistaken about the address. Larry when . My father-in-law went to America in 1943. Two years later, the war ended. My father-in-law when.
The old lecturer had been speaking for a few minutes when the Dean came in.
Larry was waiting for half an hour, when he realized that he had been mistaken about the address.
My father in law had been living in America for two years when the war ended.