Exercise2. Write the sentences in passive voice New desks ___had been bought(buy). 1 A lot of trees (plant). 2 New lights (put in). 3 The classrooms (paint). 4 A tennis court (build). 5 The fence (take down). 6 Five new classrooms (add). 7 New equipment (buy) for the chemistry lab. 8 Showers (install) in the changing rooms. 9 New blackboards (put up) in the classrooms. 10 The whole school (modernize)

New desks had been bought.
1 A lot of trees had been planted.
2 New lights had been put in.
3 The classrooms had been painted.
4 A tennis court had been built.
5 The fence had been taken down.
6 Five new classrooms had been added.
7 New equipment had been bought for the chemistry lab.
8 Showers had been installed in the changing rooms.
9 New blackboards had been put up in the classrooms.
10 The whole school had been modernized.

Explanation:
In passive voice, the object of the active sentence becomes the subject of the passive sentence. The verb is then changed to the past participle form and "be" or "been" is added before the past participle to form the different tenses.

Step-by-step solution:
1. We start with the active sentence: "They have bought new desks."
2. We identify the object of the active sentence, which is "new desks."
3. In the passive voice, the object becomes the subject of the sentence, so we say "New desks."
4. The verb "have bought" is changed to the past participle form, which is "been bought."
5. Finally, we add "had" before "been bought" to form the past perfect tense, resulting in "New desks had been bought."

Repeat the steps for each sentence to convert them into the passive voice.

Note: It is important to understand the active and passive voice and their usage in order to properly construct passive sentences. The passive voice is used when the focus is on the receiver of the action rather than the doer.