The Iranian government is accused of _______ some terror organizations in the Middle East by the

United States, who can't not produce firm evidences to prove it.      [ ]

A. sponsoring    

B. providing      

C. offering    

D. supplying

宴请时，应根据( )确定宴会的规格。

A．宾客所在的行业

B．宾客的社会知名度

C．宾客的数量

D．宾客的职务身份