She did not know where most of the people in the conference was from.
Giải thích
Chọn đáp án Dwas => were
Chủ ngữ là “most of the people”(số nhiều) nên tobe là “were”.
Chọn đáp án Dwas => were
Chủ ngữ là “most of the people”(số nhiều) nên tobe là “were”.