Выберите правильный вариант следующего предложения, содержащего ошибку:
The devices have been installed and cheked by the beginning of yesterday's test.

  • The devices had been installed and cheked by the beginning of yesterday's test.
  • The devices had installed and cheked by the beginning of yesterday's test.
  • The devices were installed and cheked by the beginning of yesterday's test.
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