A boy who traveled from Tianjin to Beijing was an domestic tourist.
                    举一反三
- There are 4 municipalities directly under the Central Government of China. They are . A: Beijing, Shanghai, Tianjin and Xi’an B: Beijing, Xi’an, Hangzhou and Nanjing C: Beijing, Shanghai, Tianjin and Chongqing D: Beijing, Chengdu, Shanghai and Tianjin
 - The friend _____ I traveled was from Italy. A: by whom B: with whom C: with who D: about who
 - The boy from who I borrowed the book is his brother.
 - It's colder in Tianjin than Beijing, though Tianjin is further to the south and nearer to the sea.
 - Tianjin has become one of the most popular tourist cities in China.
 
