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Ответ:
The sentence expresses a strong deduction about the past: can’t have been.
Ответ: B can’t have been.
31 It ______ John who used the computer because he doesn’t know the password. A mustn’t be B can’t have been C might have been
The sentence expresses a strong deduction about the past: can’t have been.
Ответ: B can’t have been.