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> —Why does the river smell terrible? —Because large quantities of water__________.A.have pollutedB.is
—Why does the river smell terrible? —Because large quantities of water__________.A.have pollutedB.is
题目简介
—Why does the river smell terrible? —Because large quantities of water__________.A.have pollutedB.is
题目详情
—Why does the river smell terrible?
—Because large quantities of water__________.
A.have polluted
B.is being polluted
C.has been polluted
D.have been polluted
题型:单选题
难度:偏易
来源:不详
答案
D
略
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题目简介
—Why does the river smell terrible? —Because large quantities of water__________.A.have pollutedB.is
题目详情
—Why does the river smell terrible?
—Because large quantities of water__________.
答案