Question

Hauser had bought an old primer thumbed at the edges (change the voice).​

Answer 1

Answer:

An old primer thumbed at the edges has been bought by Hauser.

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Answer 2

Answer:

An old primer thumbed at the edges had been bought by Hauser.

Explanation:

An old primer thumbed at the edges(object),

Hauser (subject),

had bought (verb),

In passive voice,the sentence will become= object + had been (verb) + (by) subject.