_Look!She skiing so fast!-Hard to()her legs were once broken.A know B realize C imagine D find
问题描述：
_Look!She skiing so fast!-Hard to()her legs were once broken.
A know B realize C imagine D find
答
C
答
C 难以想像。
答
C
看!她滑雪好快!难以（想象）她的腿以前受过伤.
答
FYI !
I choose B ，很难意识到，想象到。。。