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    - Why are you so upset about losing a pen? -That was a pen! A. ten-dollars B. tens-dollars C. ten-dollar D. tens-dollar 【查看更多】

     

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    — Why are you so upset about losing a pen?

    —That was a _______pen!

    A. ten-dollars     B. tens-dollarsC. ten-dollar       D. tens-dollar

     

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