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    13．I feel upset.for there are so many troublesome problems ． A．remaining to settle B．remained to settle C．remaining to be settled D．remained to be settled 【查看更多】

     

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    I feel upset，for there are so many troublesome problems         ．

    A．remaining to settle                          B．remained to settle

    C．remaining to be settled                       D．remained to be settled

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