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    –What a stupid mistake! -It is not polite to laugh your friends when they make mistakes. A. on B. of C. in D. at 【查看更多】

     

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    –What a stupid mistake!

    —It is not polite to laugh___ your  friends when they make mistakes.

    A. on 　　　　B. of 　　　　　C. in 　　　　　　　D. at

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