WHO - You should use "who" when referring to a person, and "that" when referring to a thing.
15
The house _____ looks like a big box is mine.
which / that
15
I like the cake ____ my mom bought.
that (defining clause: it's essential to the meaning of the sentence. "Which" normally introduces non-defining clauses, but can also be used for defining in UK)
15
Do you know the woman ____ is wearing red?
WHO - You should use "who" when referring to a person, and "that" when referring to a thing.
15
I don't like a person ____ is rude and mean.
WHO - You should use "who" when referring to a person, and "that" when referring to a thing.
15
They are the girls with _____ I played badminton yesterday.
WHOM - (Here, "whom" is the object of the preposition "with.")
15
I want the bag ____ is beautiful and useful.
which/that - "That" introduces defining clauses, essential for understanding the meaning."Which" introduces undefining clauses (also defining in UK)
15
He is the doctor _____ clinic is big in town.
whose
15
She is the woman _____ hat is blue.
whose
15
I met a man with __ I used to work.
whom
15
There were 500 passengers, of __ 121 drowned.
whom
15
Cohen, ___ short film won awards, was chosen to direct the movie.