书面表达。

    吴老师让同学们制作一张海报介绍自己的三个同学，下面是Daniel的写作提纲，请根据提纲帮他

完成海报。                             My Three Classmates 

    1. Chen Bing, a boy with few words (沉默寡言), behind me

    2. Luo Wen, friendly, like playing football, help each other

    3. Huang Ling, next to me, like talking to himself (自言自语), be good at Maths 

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川贝母的商品规格有（）3种。