=> That : The house that they live is very old.
=> Tanpa relative pronoun : The house they live is very old.
That is the bench. We were supposed to meet.
=> Where : That is the bench where we were supposed to meet.
=> Which : That is the bench which we were supposed to meet.
=> Which + preposition : That is the bench which in were supposed to meet.
=> That : That is the bench that we were supposed to meet.
=> Tanpa relative pronoun : That is the bench we were supposed to meet.
Baca Juga: Inilah Susunan Passive Voice Bahasa Inggris yang Tepat dan Benar