There is no________ that students will listen attentively in class, if they are _____ The World Cup in South Africa at night

A．probability ; accustomed to

B．possibility ; addicted to

C．need ; drunk with

D．chance ; familiar with

社会保障项目、标准的确立关系，直接影响到社会成员个人的受益程度和社会保障的总体规模与水平。 ( )