fail|failed

如果她不学习，她所有的考试都会不及格。

If she doesn't work, she'll ___fail all her exams.

我听说大多数人考试会不及格两三次。

I was told most people ___fail the exam two or three times.

她搬到伦敦，希望找到模特工作，但失败了。

She moved to London in the hope of finding work as a model, but ___failed.