单项选择题
Between 1900 and 1912, the nations of Europe were at peace. But there were hostilities, rivalries, and conflicts brewing that would soon tear the whole continent apart. The great conflict was World War Ⅰ. (1) just prior to that war, there were two (2) conflicts in the Balkan Peninsula. These two short wars took place in 1912 and 1913. Their (3) result was to end the (4) of the Turkish Ottoman Empire in Europe. The more tragic (5) of the Balkan Wars was to heighten the already fierce international tensions that were (6) the nations of Europe toward World War Ⅰ.
In 1912 the Balkan nations (7) of Bosnia, Herzegovina, Montenegro, Serbia, Romania, Bulgaria, and Greece. The Macedonian region in northern Greece was under the (8) of the Turks. The Balkan lands were also peopled by many intensely nationalistic ethnic groups. Among these were Serbs, Croats, Slovenes, Bulgars and Macedonians. These peoples had long been fierce rivals for territory and political (9) . Religious (10) between Roman Catholics and Eastern Orthodox Christians within these groups further added to their disputes. These rivalries still (11) .
Serbia, Bulgaria, Greece, and Montenegro formed the Balkan League in 1912. In October 1912 the Balkan League (12) war (13) the Ottoman Turks. The Balkan (14) were quickly victorious. They won battles (15) Skopje, Monastir and other cities. The war ended in December. In May 1913 a treaty signed in London formally (16) the conflict. The Turks lost most of their European (17) .
(18) , the peace did not last. In June 1913 Bulgaria attacked Serbia and Greece. This (19) conflict was ended by a (20) signed in Bucharest in August 1913.
A.But
B.while
C.And
D.Or