The book was very interesting. It ___________ (work) over 3 years before it was published.

Ответы

Ответ дал: yaanyaua
1

Ответ:

had been worked over

Объяснение:

Ответ дал: KathyGFD
2

had been worked over


KathyGFD: Над ней работали 3 года they had been working on it (for) 3 years: active voice. It had been worked over... : passive voice
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