“不知道”造句

我当时不知道罗恩有那么坚强的个性。
I didn't know Ron had that much strength of character.

我不知道自己要去上哪所大学.
I didn't know what college I wanted to go to.

现在还不知道有多少人在枪林弹雨中身亡。
It's still not known how many died in the volleys of gunfire.