阅读理解，根据课文信息，写出括号内单词的正确形式。

Dear Amy,

    My name is Zhang Yuxiao. I'm a pupil. I ____（go） to the park last Sunday. I ____（see） some birds. They ____（sing） beautifully. I ____（eat）some food and ____（drink） some colas.  It was fun. I had a good time last Sunday.