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Baihou English
English Language Learning
I didn’t know that Joe had to get up early, so I didn’t wake him up. If I ___ that Joe had to get up early, I would have woken him up.
know
had known
knew
Выучи грамотный разговорный английский до уверенного владения всего за 9 месяцев по системе естественного усвоения иностранных языков.
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