麻烦英语大神帮我看看下面的英文语法有无错误，谢谢了

个人意见，仅供参考，希望能帮到你，大家互相学习。O(∩_∩)O~
（1）The secretary general of oral English ,which organized and informed the oral English activities.

改：Worked as a oral English secretary who organized the oral English activities.
（2）The Model Student of Academic Records in 2013, and the third-prize scholarship in 2014.

改：Rated as exemplary student of Academic Records in 2013 and got the third-prize scholarship in 2014.
（3）Have sold some mobile phones to foreigner.

改：Have the experience about selling mobile phones to foreigners.