In reference to the current popularity of electronic mail, postal services frequently expressed anxiety that their prospects for remaining profitable are being limited by their antiquated business model.
A In reference to the current popularity of electronic mail, postal services frequently expressed anxiety that
B Referring to the current popularity of electronic mail, postal services frequently expressed anxiety about
C When referring to the current popularity of electronic mail, postal services frequently express anxiety about
D With reference to the current popularity of electronic mail, postal services frequently expressed anxiety about
E Referring to the current popularity of electronic mail, postal services frequently express anxiety that
A In reference to the current popularity of electronic mail, postal services frequently expressed anxiety that
B Referring to the current popularity of electronic mail, postal services frequently expressed anxiety about
C When referring to the current popularity of electronic mail, postal services frequently express anxiety about
D With reference to the current popularity of electronic mail, postal services frequently expressed anxiety about
E Referring to the current popularity of electronic mail, postal services frequently express anxiety that
A SMALL TOWN GUY
