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    The lake used to be polluted, but now something to make it clear again. A. is being done B. does C. is doing D. is done 【查看更多】

     

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    34. The lake used to be polluted, but now something_____ to make it clear again.

    A. is being done                B. does                      C. is doing                D. is done

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    The lake used to be polluted, but now something_____ to make it clear again.

    A. is being done 　　　　 B. does　 　　　 C. is doing　　 　　 D. is done

     

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    34. The lake used to be polluted, but now something_____ to make it clear again.

    A．is being doneB．doesC．is doingD．is done

    查看答案和解析>>


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