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МатематикаВопрос:
4 They had walked/had been walking for hours when they stopped for a rest.
Ответ:
Решение:
- Используется Past Perfect Continuous (had been walking), чтобы подчеркнуть длительность действия (прогулка в течение нескольких часов), которое предшествовало другому прошедшему действию (остановка на отдых).
Ответ: had been walking
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