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МатематикаВопрос:
13. That dog .... (bark) since last night.
Ответ:
Фраза "since last night" (с прошлой ночи) указывает на начало действия в прошлом и его продолжение до настоящего момента. Это Present Perfect Continuous.
Решение:
- Определяем время: Present Perfect Continuous.
- Форма глагола "bark" в Present Perfect Continuous для "That dog" (оно): has been barking.
Ответ: has been barking
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