Why need to use " ' " in some English words?
1. Betty and Lingling are standing in front of Tian'anmen Square. [Tian'anmen Square]
2.Yes, there is a big bookshop over there, just along Xi Chang'an Jie, on the right, opposite the bank. [Xi Chang'an Jie]
3. Excuse me, can you tell me the way to Wang fujing Dajie? [Wang fujing Dajie]Yes it's a Chinese place too but it don't need " ' ", so I'm not sure if it's a problem with Pinyin.