Question

They cut down many trees to construct the office (change into passive voice).​

Answer 1

Answer:

the trees have been cut down by them

Explanation:

mark as brainliest

Answer 2

Many trees are cut down by them to construct the office.

• The given sentence is the active voice of the present indefinite (or simple present) tense.
• The rule to make the passive voice in the present indefinite is 'object + is/am/are + the third form of the verb + by + subject + other words'.
• In this case, the object is 'many trees', the verb is 'cut down', the subject is 'they' and the other words are 'to construct the office'.