题目内容：

根据下列句子及所给汉语注释，在空缺处写出各单词的正确形式（每空只写一词）。

1.According to an ___________ (古代的) Chinese legend, tea was invented by accident.

2.The more careful you are, the ___________(少) mistakes you’ll make.

3.She said that ______ (加入) the English club was the best way to improve your English.

4.I was ____________ (被邀请) to Sally’s birthday party. It’s at her house on Saturday.

5.She knew the _________ (重要性) of working hard and not just to do what she enjoyed.