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    -- I wonder why he left without a word. -- He some trouble for he looks dull. A. could have had B. should have had C. can have had D. must have had 【查看更多】

     

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    -- I wonder why he left without a word.

    -- He       some trouble for he looks dull.

    A. could have had          B. should have had      C. can have had              D. must have had

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    —I wonder why Tom left without a word.

    —He          have had some trouble，for he looks dull．

    A．should          B．must             C．can           D．could

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