From The Diary Of Anne Frank,
why does she write in her diary

It is a strange experience for Anne to write in a diary as she feels that there is nothing as important in the life of a thirteen-year-old that would grab the attention of a reader towards her diary. She believes that she is an ordinary school girl who will write about normal school activities and about her friends which is common to anyone her age and there is nothing spectacular about it.

Explanation:

Anne Frank starts writing in her diary as she feels it can be her friend to whom she can confide in all her secrets. She feels that since it is not to be seen by anyone as no one would be interested in musings of a 13-year-old she can write almost anything in it. She calls her diary ‘Kitty’ and gives a short introduction about herself and her family as a source of recognition.

where is the writing? (so i can answer)

synonymous.

he was ashamed of himself