Преобразуйте предложение в разделительный вопрос( 3 предложения) Catalogue sales had been used since the 15th century, ....? Improvements in transport and postal services, influenced catalogue sales, ..? Sears and Roebuck were also using mail order with great success, ...?
Had catalogue sales been used since the 15th century? Were improvements in transport and postal services influencing catalogue sales? Were Sears and Roebuck also using mail order with great success?
Had catalogue sales been used since the 15th century?
Were improvements in transport and postal services influencing catalogue sales?
Were Sears and Roebuck also using mail order with great success?