Cho mình hỏi chữ Of course được đóng ngoặc lại trong đoạn văn trên để làm gì ạ!!! My favourite leisure activity is reading. I like reading because it is a hobby that is useful and interesting: useful because you can find a lot of knowledge of all areas that you need; interesting because the books can give you the joy and help you relax after a day of toil etc... Especially, when you join the forum, you can meet a lot of people who have interests similar to yours, comment on the books or novels that interest you. On my birthday, I got a novel "Sherlock Holmes" from my parents. It was very interesting.It is the first of book that I have been. I usually spend almost of free time in choosing the book with my friends, participate in dicussion on the forum and reading (of course!). Every weekend and all holidays when I have no work to do, I often read books and ruminate on it. I also help some friends can select the genres of books that they like. I always hope that I will have my own library in my future. I love books very much and perhaps, I couldn't live without them.