YOU SAID:

Among the guests at the party were some of my friends from high school.

INTO JAPANESE

パーティーの客の中には高校時代の友人もいた。

BACK INTO ENGLISH

Some of the party guests were friends in high school.

INTO JAPANESE

パーティーの客の中には高校時代の友人もいた。

BACK INTO ENGLISH

Some of the party guests were friends in high school.