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• Itisapitythattheindustrialcities

• 问题详情：Itisapitythattheindustrialcities_____________inthe19thcenturydonotattractvisitors.  A.havingbeenbuilt     B.built                    C.tobebuilt            D.havingbuilt【回答】B知识点：虚拟语气与情态动词...
• 2019-09-0521174