"expect to do sth" 是一个常用的英语短语，意思是“期待做某事”。以下是一些简单的八年级学生可以使用的例句：

1. I expect to finish my homework by 8 pm.

2. She expects to travel to Japan next year.

3. We expect to have a good time at the party.

4. He expects to pass the English exam.

5. They expect to win the championship this season.

这些例句展示了如何在不同的语境中使用 "expect to do sth" 这个短语。希望这些例子对你有所帮助!