Can "that" be omitted? She bought the jacket that her brother had recommended.
Yes
Can "that" be omitted? The cake that I bought is on the table
Yes
Can "that" be omitten? The woman that my brother dated was very pretty.
Yes
who / Freddie Mercury / in / was born / Farrokh Bulsara / an artist / was
Freddie Mercury, who was an artist , was born in Farrokh Bulsara.
Do you remember the place______ we found that bag with money?
where
Can "that" be omitted? I ate the sandwich that had tomato and cheese inside.
No
school / the university / excellent / an / where / is / I teach
The university where I teach is an excellent school
Marie Curie is the woman ______ discovered radium.
who / that
This is the actor _____ won the oscar.
who / that
Can "who" be omitted? His friend who is a lawyer lives in Guadalajara.
No
Join the 2 sentences: I bought a new car. It is very fast.
I bought a new car that is very fast.