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    -Guys, my legs have given out! I can’t walk any further! -We should have a rest. We Shangri-la a whole day. A. explore B. are exploring C. have been exploring D. explored 【查看更多】

     

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    —Guys, my legs have given out! I can’t walk any further!

    —We should have a rest. We ________ Shangri-la a whole day.

           A. explore           B. are exploring         C. have been exploring D. explored

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