_ e-mail is popular today,most people like to use telephones to communicate.A.IfB.UntilC.AsD.Although

问题描述:

_ e-mail is popular today,most people like to use telephones to communicate.
A.If
B.Until
C.As
D.Although

D 虽然电邮如今很流行,但大多数人喜欢使用电话来交流