结构及语法上都没有错误。
sometimes为副词 cos此处用得不好 可改为spend 整个句子结构很混乱 可改为短句
恭喜你，写的不错。No mistake. Keep practising,and you will hold a bright future.
I never give up trying my best to deal with the problem which comes up . sometimes I fail and which cause a huge waste of time and effort ,but I never regret at all because I have done my own thing.
唉 迟了一步…………
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