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МатематикаВопрос:
62. Michael must _______ on the phone. I've tried calling him but his line is busy. A. have talked B. be talking C. talk
Ответ:
Решение:
- Ситуация описывает предположение о том, что происходит сейчас.
- 'Must be talking' означает 'должно быть, разговаривает', что является предположением о текущем действии.
- 'Must have talked' (должно быть, поговорил) относится к прошлому, а 'must talk' (должен поговорить) — к обязанности.
- Поскольку линия занята, логично предположить, что Майкл сейчас разговаривает по телефону.
Ответ: B. be talking
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