By the time Mary entered her first race, she ____ for seven years. A year before she graduated from the university, she ____ an Olympic medal. Before John became a famous actor, people ____ much interest in his movies. He ____ for 20 years by the time he got his first Oscar. HAD WON is an example of the ____ tense. HAD BEEN WORKING is an example of the ____ tense. The ____ (composed of ____ + ____) is used to express an action in the past that happened before another action in the past. The ____ (composed of had + ____ + ____) is used to express an action in progress for a time in the past before another past action. Common time markers of the past perfect / past perfect continuous are BY THE TIME, BEFORE.

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