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C
被污染,用过去分词为什么不选B,B是现在进行时,但水和空气是被污染,所以不能用主动时态的现在进行时,一定要用被动时态
Now the enviroment is becoming worse and worse.The air and water are______
Now the enviroment is becoming worse and worse.The air and water are______
A.pollution
B.polluting
C.polluted
D.more pollution
A.pollution
B.polluting
C.polluted
D.more pollution
英语人气:544 ℃时间:2020-01-30 02:32:25
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