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    30.--How long has it you to wait for your friend?--About an hour.I don't know why he keeps me so long.A.taken,waiting B.cost,waiting C.taken,to wait D.spent,wait 查看更多

     

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    --How long has it ________ you to wait for your friend?

    --About an hour.I don't know why he keeps me ________ so long.

    A.taken;waiting       B.cost;waiting             C.taken;to wait         D.spent;wait

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