My favourite book Harry Potter написать на английском языке Elementary level

Конечно! Вот пример текста на английском языке о вашей любимой книге "Гарри Поттер" на элементарном уровне:

"My favorite book is Harry Potter. It is written by J.K. Rowling. The story is about a boy named Harry. He is a wizard. Harry goes to a school for wizards called Hogwarts. He has friends named Ron and Hermione. Together, they have many adventures. They fight against a dark wizard named Voldemort. The book is exciting and magical!"

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