Large quantities of water, as well as some other timely help including a medical team since the serious drought hit Yunnan Province.
A. has offered
B. had been offered
C. have been offered
D. is offered
网友回答
A. has offered
B. had been offered
(答案→)C. have been offered
D. is offered
解析：考查时态语态和主谓一致。当主语后面接由as well as, as much as, acpanied by, including, in addition to, more than, no less than, rather than, together with等引导的词组时，其谓语动词的形式要依主语的单复数而定，而quantities of无论修饰可数名词还是不可数名词，谓语动词都用复数，故排除A和D，又因为时间状语是shince引导的，故主句应用现在完成时。故答案为C.