Question

If you want to s_______ in passing the exam, you have to work hard.

Answer 1

为你解答。
If you want to （succeed，成功） in passing the exam, you have to work hard.
如果你想成功地通过考试，必须努力学习。
解释：succeed in doing，成功地做某事。

Answer 2

大意：如果你想……通过考试，你必须要努力学习
这里可以填 succeed in 表示成功