21.On October 23,2018,President Xi Jinping announced the opening of the Hong Kong-Zhuhai-Macao Bridge (HZMB) in Zhuhai,Guangdong province. The HZMB, (1)
(locate) at the waters of the Lingding Sea,is a huge sea-crossing project,linking Hong Kong,Macao and the Chinese mainland city of Zhuhai.As the world's (2)
(long) sea-based project,the 55-kilometre bridge is the result of five years of research and another nine years of building.It has been described as one of the seven(3)
(wonder) of the modern world". The project (4)
(make) up of several parts.It is designed with (5)
service life of 120 years.It can withstand very strong winds.The bridge's engineers had to consider many environmental factors (6)
(protect) the(7)
(surround) environment while building the bridge.Chinese white dolphins,an endangered species that lives in the area, (8)
(be) a particular concern. The HZMB will make (9)
much more convenient to travel between the three areas it connects.It will bring people in Hong Kong,Macao and Guangdong within a "one-hour living circle", (10)
is expected to attract more visjye.aiors.It will be a transport link as well as a social;economic,cultural,and tourism connection among the three areas.