问题补充：
单选题Alotoftents,drinkingwaterandfood__________tothehomelessearthquakesurvivorsinthepastseveralweeks.A.are sentB.were sentC.have been sentD.had been sent
答案：
C
时间：2020-06-25 14:33:46
单选题Alotoftents,drinkingwaterandfood__________tothehomelessearthquakesurvivorsinthepastseveralweeks.A.are sentB.were sentC.have been sentD.had been sent
C
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