In China, both Putonghua and English are the languages of business. So, if the foreign tourists travel to China for business purpose, they can usually communicate with the chinese merchants in simple English. However, Putonghua is an official language of China. Most of the Chinese merely speak Putonghua with the outsiders. So, if the foreign tourists want to visit China but cannot speak Putonghua, they will find inconvenient on their tours. Therefore, it is essential and useful for the foreign tourists to learn some simple Putonghua when they decide to visit China.