Largequantitiesofinformation,aswellassometimelyhelp,   ...

问题详情：

Large quantities of information, as well as some timely help,        since the organization was built.

   A．has offered            B．had been offered      C．have been offered  D．is offered

【回答】

C

知识点：现在完成时及其被动式

题型：选择题