The best replacement for that is is which is.

Лучшие альтернативы к that is можно упорядочить следующим образом:
★★★★★  which is
★★  that are
★★  that's
★★  this is
★  for example
★  that is to say
★  namely
  that was
  example

Ваша альтернатива к that is не упомянута? Предложите!


Пока тут не было идей о компаньонах к that is.
Вам известен компаньон к that is и он пока не упомянут тут? Предлагайте!



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that is
which is
that are