高等继续教育 / 英语语法
正确率：100%
题型描述: 单选题
After an absense of three months, everything in the room was covered with ＿＿＿＿＿＿＿＿＿＿.
A.dusts
B.dust
C.the dust
D.a dust
After an absense of three months, everything in the room was covered with ＿＿＿＿＿＿＿＿＿＿.
A.dusts
B.dust
C.the dust
D.a dust
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