单项选择题
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A.Only half the world’’s water can be used.
B.The world population is increasing faster and faster.
C.Half of the world’’s water resources have been seriously polluted.
D.Humanity has not placed sufficient value on water resources.
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A recent investigation shows that about 80 percent of pupils have private tutors. In this part, you are to write a composition of 120 words about The Advantages and Disadvantages of Private Tutoring.
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