问题补充：
A lot of food as well as some tents to Yushu since the earthquake occurred.
A. has been transported
B. have been transported
C. is being transported
D. are transported
答案：
(答案→)A. has been transported
B. have been transported
C. is being transported
D. are transported
解析：考查主谓一致及动词的时态和语态。as well as连接两个并列主语时，谓语动词和前一个主语保持一致，A lot of food是不可数名词，所以谓语动词用单数，排除B,D；根据时间状语since the earthquake occurred，可知句子要用现在完成时态，所以选A。
