1. 다음 중 밑줄 친 that의 용법이 다른 것과 틀린 것을 고르시오.
① it was my dad that invited my friends at the
party.
② it was the ring that i had found behind the
mirror.
③ it is in the house that we faced the strange animal.
④ it was this morning that i called you.
⑤ it is my opinion that other people stand up for.

제가 볼때는 1~5번이 다 강조 같은데요
정답과 설명좀 부탁드릴께요!