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Beijing,forhostingthe2008OlympicGames,itsfirstloop(圈)ofgreenbeltaroundthedowntown,anareaof102.3squarekilometers,inthepastthreeyears.A.prepared;built;coveredB.preparing;built;andcovered

题目详情
Beijing, ______for hosting the 2008 Olympic Games, ____its first loop (圈) of green belt around the downtown, ____an area of 102.3 square kilometers, in the past three years.
A.prepared; built; covered B.preparing; built; and covered
C.which prepares; building; covers D.preparing; built; covering
▼优质解答
答案和解析
D

本题易误选A,B。preparing for作状语;built为谓语动词;covering an area of 102.3 square kilometers作green belt的定语。