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    -- How do the twins usually go to school? -- They take a bus, but now they walking. A. used to; used to B. were used to; are used to C. used to; arc used to D. were used to; used to 【查看更多】

     

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    -- How do the twins usually go to school?

    -- They_______ take a bus, but now they _______ walking.

    A. used to; used to                     B. were used to; are used to

    C. used to; arc used to               D. were used to; used to

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