You must have good grades.

你一定有好成绩。

youdao

I'm very qualified, I have good grades. I can get in.

我有资格，我成绩很好，我能上。

youdao

If you have good grades, you could also offer study tips.

如果你学习很好，你也可以提供学习技巧从而获得报酬。

youdao

For kids who have good grades but test-anxiety, that can be a real blessing.

FORBES: The Three Biggest Lies in College Admission

If you have good grades you can apply anywhere.

BBC: Education & Family

The group, which includes many top universities, says changes to the funding system in England have meant students who wanted to go to a good university and had the right grades have not been able to.

BBC: Russell Group universities have student places