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英语六级模拟试卷(30)－－词汇免费下载，
) keep to make B) keeping to make
C) keep on make D) keep on making
42.The Great Wall, its one end ____ to the east of Beijing, lies across North China.
A) extending B) extended
C) extends D) is extended
43.The Youth Centers set up by the city government hav
英语六级模拟试卷(30)－－词汇
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