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    - do you clean the classroom? - Three times a day. A. How long B. How often C. How soon D. How many 【查看更多】

     

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    — ____ do you clean the classroom? 
    — Three times a day.

    [     ]

    A. How long
    B. How often
    C. How soon
    D. How many

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    — ____ do you clean the classroom?  — Three times a day.

    A. How long              B. How often      C. How soon      D. How many

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    1 

    — ____ do you clean the classroom?

    — Three times a day.

    A. How long               B. How often             C. How soon              D. How many

     

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