smart|smarter|smartest

杰玛的老师说她是班上最聪明的孩子之一。

Gemma's teacher says she's one of the ___smartest kids in the class.

如果你这么聪明，为什么不修好它？

Why don't you fix it if you're so ___smart?

我姐姐在数学方面比我更聪明。

My sister is ___smarter than me at math.