（2018·重庆B卷）
My math teacher lives an active life. She looks as ______ as she was ten years ago.
young
younger
the youngest
youngest
我们可用“语法分析法”解答本题。as...as...意为“和……一样……”，两个as中间要用形容词或副词的原级。young是原级，younger是其比较级，youngest是其最高级。故选A。