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----Whydoesthelakesmellterrible?----Becauselargequantit...

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問題詳情:

----Whydoesthelakesmellterrible?----Becauselargequantit...

---- Why does the lake smell terrible?


----Because large quantities of water________


A. have polluted   B. is being polluted   C. has been polluted  D. have been polluted


【回答】

D

知識點:現在完成時及其被動式

題型:選擇題

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