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МатематикаВопрос:
9. They __ TV since morning. a) have been watching b) has been watching c) have watching
Ответ:
Решение:
- Указание 'since morning' (с утра) обозначает начало действия в прошлом, которое продолжается до настоящего момента.
- Это требует использования времени Present Perfect Continuous.
- С подлежащим 'They' используется форма 'have been watching'.
Ответ: a) have been watching
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