Macaques are mainly vegetarian, although some species have been observed feeding on insects. In natural habitats, they have been observed to consume certain parts of over one hundred species of plants including the buds, fruit, young leaves, bark, roots, and flowers. When Macaques live amongst people, they raid agricultural crops such as wheat, rice or sugar cane; and garden crops like tomatoes, bananas, melons, mangos, or papayas.^[10] In human settings, they also rely heavily on direct handouts from people. This includes peanuts, rice, legumes, or even prepared food.
Several species of macaque are used extensively in animal testing, particularly in the neuroscience of visual perception and the visual system.

The Glastonbury Festival is a very big music festival. It is held at Worthy Farm near Glastonbury, Somerset, England, most years, during the last weekend in June. About 100,000 people come to the festival every time. The festival is hosted and organized by local farmer Michael Eavis. It is a widely known festival with many big and popular bands playing there every year.

Understanding passive voice leads to easy identification of passive infinitives, as they are passive constructions using infinitive verbs. Examples:

 

 Double Passives 

Double passives are those phrases that contain two connected passive verbs, the second of which is a passive infinitive. For example, examine "The seasonal work was needed to be done by temporary employees." 

To transform the example to active voice, recast the sentence by inserting a subject and rearranging to make "The company needed temporary employees to do the seasonal work."

https://www.thoughtco.com/passive-infinitive-grammar-1691488

 

People say that he is a criminal.

Can we change this sentence into the passive? Yes, we can.

He is said to be a criminal. (NOT That he is a criminal is said by people.)

They say these nuts are good for health. (Active)

These nuts are said to be good for health. (Passive)

They believe him to be dangerous. (Active)

He is believed to be dangerous. (Passive)

Change the following sentences into the passive.

1. They say that he is a strict disciplinarian.

2. People believe that he is in favour of the change.

3. People say that this plant is a remedy for cancer.

4. They say that his company is in trouble.

5. They told us not to come back.

6. They say that these kinds of dogs are very aggressive.

7. They did not allow me to visit my husband.

1. He is said to be a strict disciplinarian.

2. He is believed to be in favour of the change.

3. This plant is said to be a remedy for cancer.

4. His company is said to be in trouble.

5. We were told not to come back.

6. These kinds of dogs are said to be very aggressive.

7. I was not allowed to visit my husband.

https://www.englishgrammar.org/passive-voice-structures-infinitives/