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Inthatcountry,August31stisanationalfestivaleveryone,menandwomen,oldandyoung,singsanddanceshappilyinthestreets.A.whereB.whenC.thatD.as

题目详情
In that country, August 31st is a national festival ________ everyone, men and women, old and young, sings and dances happily in the streets.
A.where
B.when
C.that
D.as
▼优质解答
答案和解析
B