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Moreandmorepeoplehaverealizedthatwewon’thavecleanerwatertodrinkunlesssomethingsoon.A.isdoneB.wasdoneC.willbedoneD.tobedone

题目详情
More and more people have realized that we won’t have cleaner water to drink unless something _______soon.
A.is done B.was done C.will be done D.to be done
▼优质解答
答案和解析
A