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МатематикаВопрос:
2 Mr Todd was teaching/had been teaching for thirty years when he retired.
Ответ:
Решение:
- Используется Past Perfect Continuous (had been teaching), чтобы показать длительность действия (преподавание в течение 30 лет), которое завершилось к моменту другого прошедшего события (выход на пенсию).
Ответ: had been teaching
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