Вопрос 36

Select all that apply: Which sentences correctly use the past perfect passive before a stated past event?

The stock had checked before the shop opened.
Her passport had been stamped before she boarded.Правильный ответ
The barriers had been installed before the parade began.Правильный ответ
The microphone had been test before the broadcast.

Объяснение

The passport and barriers sentences both use had been plus a participle to show earlier passive completion. The stock sentence lacks been, while the microphone sentence has a base form instead of a participle.

Объяснение

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