when you laugh,you will open your mouth and show your teeth.The healthier those teeth are,the h_____

题目

when you laugh,you will open your mouth and show your teeth.The healthier those teeth are,the h______ you look,Why is that?

答案

healthier 更健康的adj.
翻译：当你笑的时候,你会张开你的嘴露出你的牙.你的牙齿越健康,你看起来就越健康.
分析：这里的是"the...the..."“越...越...”结构,所以都要用形容词比较级.