大体上是没有错的,有几个小问题,下面是原文和问题.
Today I got up at six o 'clock. I went to the playground to do sports with my friends at half past six. In（介词使用错误,应该是On） the playground we were running and playing ball（时态有点小问题,此处不符合过去进行时的条件,应该用一般过去时）. We were very happy. And we met many classmates. We said "hello" to each other. We had breakfast together. And then went home. Do sports（动词原形绝对不能作主语,要用ING动名词形式） is really a happy thing.
修改文：
Today I got up at six o 'clock. I went to the playground to do sports with my friends at half past six. we ran and played ball on the playground. We were very happy. And we met many classmates. We said "hello" to each other. We had breakfast together. And then went home. Doing sports is really a happy thing.

楼主应该还是初中生吧,需不需要我稍微润色一下?上面修改是从语法的角度来的,从句法句型精确度上修改文章会比较漂亮噢.需要的话追问我吧. 大体上是没有错的,有几个小问题,下面是原文和问题.
Today I got up at six o 'clock. I went to the playground to do sports with my friends at half past six. In（介词使用错误,应该是On） the playground we were running and playing ball（时态有点小问题,此处不符合过去进行时的条件,应该用一般过去时）. We were very happy. And we met many classmates. We said "hello" to each other. We had breakfast together. And then went home. Do sports（动词原形绝对不能作主语,要用ING动名词形式） is really a happy thing.
修改文：
Today I got up at six o 'clock. I went to the playground to do sports with my friends at half past six. we ran and played ball on the playground. We were very happy. And we met many classmates. We said "hello" to each other. We had breakfast together. And then went home. Doing sports is really a happy thing.

楼主应该还是初中生吧,需不需要我稍微润色一下?上面修改是从语法的角度来的,从句法句型精确度上修改文章会比较漂亮噢.需要的话追问我吧.