根据所给词语，写出语法正确，意思连贯且不少于五句话的短文。
sunny, last Sunday, the students of Grade One , get up, go, the East Hill , at, morning,
plant, a lot of , very happy, trees, six, tired, while, sing ,come home , songs,

根据所给首字母写出相应单词，使句意完整。

I didn't go, but my brother went i________.

根据所给中文意思写出相应单词，使句意完整。

If you take enough exercise every day, you'll soon feel much ________(健康).

根据所给首字母写出相应单词，使句意完整。

It's not an easy problem. It's too d________ for me.