if only i _as young as you are A being B am C be D were 选的是D 为什么?

题目

if only i _as young as you are A being B am C be D were 选的是D 为什么?

答案

选D
如果我像你这么年轻.
虚拟语气,表示与现在事实相反的假设,其if 从句的谓语形式用动词的过去式(be 一般用were),主句用would/ should/ could/ might +动词原形,例如：
If I were in your position I would marry her.