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：句意为：自从严重的旱灾在云南省发生以来，大量的水，还有其它包括医疗队在内的急需的帮助已经提供（给了当地）。由后面的since可知，自从发生以来，各种帮助已经提供了，故为现在完成时。水与其它的帮助应为被提供，表被动，所以答案应为C