Select the correct active voice form of the given sentence.

All the prize winning books have been displayed on the tables.

We have displayed all the prize winning books on the tables.

The correct active voice form of the given sentence "All the prize winning books have been displayed on the tables" is We have displayed all the prize winning books on the tables.

The passive voice of the sentence is "All the prize winning books have been displayed on the tables." This sentence is in the present perfect tense, which is used to describe an action that happened in the past and is still relevant to the present. The passive voice of the sentence is formed by putting the subject of the active sentence after the verb "to be" and the past participle of the main verb. In this case, the subject of the active sentence is "books" and the main verb is "display." The past participle of "display" is "displayed." So, the passive form of the sentence is "All the prize winning books have been displayed on the tables."

The active voice of the sentence is formed by putting the subject of the passive sentence before the verb and removing the word "by." In this case, the subject of the passive sentence is "we" and the verb is "display." So, the active form of the sentence is "We have displayed all the prize winning books on the tables."

The other options are incorrect because:

• We have to display all the prize winning books on the tables. This sentence is in the present tense, but the action of the books being displayed has already happened.
• We are displaying all the prize winning books on the tables. This sentence is in the present progressive tense, which is used to describe an action that is happening now but is not finished.
• We will be displaying all the prize winning books on the tables. This sentence is in the future progressive tense, which is used to describe an action that will happen in the future and will not be finished.