30.--- Do the Smiths live next door to you? --- No, but they . A.used to B.used to do C.used to doing D.used to be 查看更多

 

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30.--- Do the Smiths live next door to you?

    --- No, but they____.

       A.used to     B.used to do C.used to doing   D.used to be

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30.--- Do the Smiths live next door to you?
--- No, but they____.

A.used toB.used to doC.used to doingD.used to be

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--- Do the Smiths live next door to you?

    --- No, but they          

       A.used to     B.used to do C.used to doing   D.used to be

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--- Do the Smiths live next door to you?

--- No, but they  .

    A.used to        B.used to do      C.used to doing    D.used to be

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