她非常努力地尝试了，但她还是不够快。

She tried very ___hard but she wasn't quite fast enough.

如果你想通过这次考试，就必须更努力地工作。

You'll have to work ___harder, if you want to pass this exam.

我不喜欢在教室里非常努力地工作到很晚。

I don't like to work very ___hard and very late in the classroom.