The International Maritime Organization (IMO) has within its mandate to make trade and travel by sea as safe and secure as possible. To reduce any threats with the potential to 56 maritime security, the Organization develops suitable regulations and guidance through the Maritime Safety Committee and with input from its Facilitation Committee and Legal Committee. 

     The threat posed by piracy and 57 robbery against ships has been on the IMO’s agenda since the early 1980s. In the late 1990s and the early 2000s, the focus was on the South China Sea and the Straits of Malacca and Singapore. More recently, since 2005, the Organization has focused on piracy 58 the coast of Somalia, in the Gulf of Aden and the wider Indian Ocean. Currently, it is implementing a strategy for enhancing maritime security in West and Central Africa, 59 the region’s maritime security agreements. The Organization, with support and cooperation from the shipping industry, has developed and adopted several antipiracy 60 , which have contributed to the mitigation of the negative impact posed by piracy worldwide.

       The city of London suffered its worst __31__ attack ever on July 7th, when four __32__ bombers set off bombs on the city’s public transport system, killing more than 50 and __33__ hundreds more.

       Police believe the three explosions on the underground and one on a double-decker bus were the work of British-born Muslims.

       The parents of one of the bombers, concerned about his safety, had __34__ him missing. Little did they know that he was a bomber until items __35__ him were found at one of the locations.

請回答第 38 題至第 42 題： 

        In 1368, a Buddhist monk called Chu Yuan-chang led a revolt in China against the Mongols, who ruled China at that time. His revolt succeeded and Chu Yuan-chang   38   a new family of Chinese rulers called the Ming Dynasty. The early Ming rulers extended the Great Wall of China, which had   39   been built to keep the Mongols out. They also brought the province of Yunnan   40   their control and forced Korea to pay a tribute to China. Soon, the Chinese decided to   41   from foreign contacts altogether. They were   42   and did not want anything from abroad. They regarded foreigners as barbaric, uncivilized people.