单项选择题
According to the text, Verdi"s creative treatment of characters is performed through ______.
单项选择题 This passage is mainly ______.
单项选择题 The statement "victory has many fathers and defeat is an orphan" (Para. 1) is used to introduce ______.
单项选择题 It is implied in the first sentence that the failure of Millennium trade round could be attributed to ______.