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Вопрос:
3 John _______ as a rescue worker since 2009. A has been working B was working C worked
Ответ:
Правильный вариант: A has been working.
Объяснение: Здесь нужно использовать Present Perfect Continuous (настоящее совершенное продолженное время), так как действие началось в прошлом и продолжается до настоящего времени.
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