It is a big challenge     1    (balance) the progress and the protection of cultural sites. We all need to take responsibility for it. However, Aswan Dam is considered     2     great success, which proves it’s possible for countries to work together to build a much better tomorrow.

There are many reasons why Chinese ancient civilization continued all the through into modern times, but one of the main factors has been the Chinese writing system. At the beginning, written Chinese is a picture-based language     1    (date) back thousands years to the use of longgu on which symbols were carved. Nowadays, Chinese characters are of great importance not only because they serve as a communication tool, but also unite Chinese people and culture. As China plays a greater role in     2    (globe) affairs, an increasing number of international students are beginning to appreciate Chinese culture through this amazing language.