Bài `2` :
`1.` It is Oil painting.
`→` Dẫn chứng : Since the 18th century, under the impact of society, culture, and technology, oil painting has undergone dramatic changes. They are rebellious but passionate, and prosperous.
`2.` Van Gogh was famous for it.
`→` Dẫn chứng : Van Gogh did not begin painting until his late twenties. He produced more than 2,000 artworks, consisting of around 900 paintings and 1,100 sketches. ( Đoạn số `3` của bài )
`3.` He painted it in the 16th- century.
`→` Dẫn chứng : The Mona Lisa is a famous 16th-century portrait by Leonardo da Vinci.
