Dưới đây là những từ thích hợp để hoàn thành đoạn văn:

1. **hobby** (sở thích)
2. **free** (thời gian rảnh)
3. **book** (cuốn sách)
4. **he** (cậu ấy)
5. **In** (Trong)

Vậy đoạn văn hoàn chỉnh sẽ là:

"My name is Hannah. My (1) **hobby** is reading. I read whenever I have (2) **free** time. I read many kinds of book such as history books, science books and fantasy books. My favourite (3) **book** is Harry Potter. The story begins when an 11-year-old boy discovers that his parents were wizards and (4) **he** starts learning magic at Hogwarts School. The story is (5) **In** Harry's adventures in..."