对耐药金葡菌感染有效的β-内酰胺类抗生素是（）

A．四环素

B．喹诺酮类

C．氨苄西林

D．甲硝唑

E．苯唑西林

Professor Williams keeps telling his students that the future __________ to the well-educated.

A．is belonged

B．is belonging

C．will be belonged

D．belongs