Susan ______ around Italy when she _______her boyfriend. (travel/meet)
Susan was traveling around Italy when she met her boyfriend. (travel/meet)
We _____ some old photos when we _____ the house. (find/clean)
We found some old photos when we were cleaning the house. (find/clean)
They ______ for the bus when they ________ the accident. (wait/see)
They were waiting for the bus when they saw the accident. (wait/see)