I wonder you can't understand it. 还是 I wonder you that can't understand it错了 是 I wonder that you can' t understand it

I wonder you can't understand it. 还是 I wonder you that can't understand it错了 是 I wonder that you can' t understand it
I wonder you can't understand it. 还是 I wonder you that can't understand it
错了 是 I wonder that you can' t understand it

I wonder you can't understand it. 还是 I wonder you that can't understand it错了 是 I wonder that you can' t understand it
宾语从句中,that不充当成分时,是可以省略的
所以两个都对

I wonder you can't understabd it.(v)