Complex sentence: Within a month of taking office he demanded that all Chinese residents in Macau pay ground rent, poll tax and property tax; the Qing authorities in Macau immediately protested against his action and attempted to negotiate.
Split into simpler sentences: Within a month of taking office he demanded that all Chinese residents in Macau pay ground rent, poll tax and property tax. The Qing authorities in Macau immediately protested against his action and attempted to negotiate.