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МатематикаВопрос:
7. The teacher guessed that the pupils _______ the lesson. a. didn't know b. weren't knowing c. hadn't known
Ответ:
c. hadn't known. Объяснение: 'hadn't known' используется, так как действие (не знали) произошло раньше, чем учитель догадался (guessed). Past Perfect показывает более раннее действие в прошлом.
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