Based on this paragraph, you can make an educated guess that when a gift is given anonymously, the of the donor is withheld.

identity; name

Anonymous means that people do not know the name or identity of a person. Many times donors wish to remain anonymous because they want people to understand that the gift was out of kindness, not out of a desire for recognition. By remaining anonymous, the donor is able to let the donation speak for itself, and not be overshadowed by who gave it. People choose to remain anonymous for many things, especially when it comes to money or recognition.

active voice: my father cut the tree.

passive voice: the tree was cut by my father.

active voice: people buy newspapers every day.

passive voice: newspapers are bought (by people) every day.

active voice: people have been using movies as political propaganda since world war ii.

passive voice: movies have been used as political propaganda since world war ii.

active voice: donna gave me my birthday present.

passive voice: i was given my birthday present (by donna). / my birthday present was given to me (by donna).

active voice: mom will leave the keys on the counter.

passive voice: the keys will be left (by mom) on the counter.

the words in parentheses are the agent of the passive voice and can be omitted when obvious, generic, or simply unnecessary.

from the count of monte cristo there are two synonyms of the word “grotto”. these words are chamber and cavern.