1we (not visit) sam's house house before she ) the party​

ответ:

we did not visit sam's house before she had had the party.

ответ:

we hadn't visited sam's hous before she had the party.

объяснение:

the core democratic values are the fundamental beliefs and constitutional principles of every society that proclaimed a democracy as the main state value. the government must protect the main human values such as life, liberty, justice, equality, the value that martin king maintained and struggled for, diversity, truth and pursuit of happiness. we should emphasize the freedom as the basic value of real democratic society. all of that comes from definition of the word “democracy” as the power of people themselves.

1)мы знаем,что он работает над проблемой космической связи. 2)если вы совершите,даже малейшую ошибку на компьютерном языке, разговор не получится, и вы обязаны начать с заново.3)читальный зал библиотеки конгресса занимает большая коллекция справочников.