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МатематикаВопрос:
3. I (not to see) him since 2006.
Ответ:
Решение:
Предложение содержит указание на период времени, который начался в прошлом (since 2006) и продолжается до настоящего момента. Это характерно для Present Perfect. В отрицательной форме Present Perfect используется 'have/has' + 'not' + 'V3'. Глагол 'see' в третьей форме — 'seen'.
Ответ: have not seen
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