YOU SAID:

I think I found out that my homework ate itself last night and now I have nothing to submit to my teacher.

INTO JAPANESE

昨夜宿題が食べられてしまったので、先生に提出するものがなくなったと思います。

BACK INTO ENGLISH

I ate my homework last night, so I don't think I have anything to submit to my teacher.

INTO JAPANESE

昨夜宿題を食べたので、先生に提出するものはないと思います。

BACK INTO ENGLISH

I ate my homework last night, so I don't think I have anything to submit to my teacher.