YOU SAID:

My friend's house had lots of food that I proceeded to eat vigourously.

INTO JAPANESE

友人の家にはたくさんの食べ物があり、それを元気に食べ始めました。

BACK INTO ENGLISH

There was a lot of food in my friend's house and I started eating it.

INTO JAPANESE

友人の家にはたくさんの食べ物があり、私はそれを食べ始めました。

BACK INTO ENGLISH

There was a lot of food in my friend's house and I started eating it.