Largequantitiesofinformation,aswellassometimelyhelp,   ...

問題詳情：

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

知識點：現在完成時及其被動式

題型：選擇題