1. Stamp collection is an interesting hobby (hobby là 1 danh từ mang tính khái quát nên ta dùng mạo từ a/an, interesting hobby có interesting bắt đầu = 1 nguyên âm /ɪ/ nên ta dùng an)
2. You can learn many things, such as the geography of a country from stamps (learn s.th from s.th/s.one: học cái gì từ cái gì/ai)
3. Postal stamps are a source of interesting facts and important dates about every country in the world (a source of....: một nguồn....)
4. It makes stamp collecting become very popular (make s.th/s.one become adj: làm cái gì/ai trở nên như thế nào)
5. As you look at the pages of a stamp album, you can learn interesting details of foreign customs, arts, literature, history and culture (detail of s.th: chi tiết của cái gì; với ý cuối cùng ta dùng and)
6. Their colors can make you feel relaxed and happy (make s.one (feel) adj: làm cho ai (cảm thấy) thế nào)
7. Collecting stamps can become a business (can + V(inf)
8. If you are lucky in finding a special stamp, it will bring you some money besides knowledge and pleasure (lucky in s.th/doing s.th: may mắn trong gì/việc gì; If1: If S + V(s,es), S + will + V(inf)
