8. Choose the correct sentence in the Passive Voice. They will open a restaurant next year. A) They will be opened a restaurant next year. B) A restaurant will opened by them next year. C) A restaurant will be opened them next year. D) A restaurant will be opened next year. E) A restaurant will be open by them next year.

Перевод задания: Выберите правильное предложение в страдательном залоге. В следующем году они откроют ресторан.

Correct answer: D) A restaurant will be opened next year.

Правильный ответ: D) Ресторан откроют в следующем году.

Вариант by them не обязателен, поэтому исполнитель действия опущен. Форма глагола — will be opened.
The phrase by them is not necessary, so the agent is omitted. The verb form is will be opened.