All the students in our class are over fifteen except Li Lei.He is ___ in our class.

题目

All the students in our class are over fifteen except Li Lei.He is ___ in our class.
1younger 2the oldest 3the youngest 4older

答案

答案：3
翻译：除了李雷外,我们班上的学生都已满15岁,他（李雷）是我们班上【最年轻的】.
根据句意答案选择3.