The DVD recorder, _________ I bought a few days ago, is not working.
which
The costumers thanked the waiter. He smiled.
The costumers thanked the waiter who smiled.
There isn't anyone with __________ I can do the school project. I need help!
whom
The bus is the transport __________ my brother takes to work.
that / which
Justin Bieber, __________ girfriend is Hailey Baldwin, is my crush.
whose
She is the woman about __________ everyone is talking.
whom
My dad, __________ travels a lot on business, is in India now.
who
He is a poet. His works are very well known.
He is a poet whose works are very well known.
I passed the final exam. It was very difficult.
I passed the final exam that / which was very difficult.
Instagram is the app __________ most teenagers use these days.
that / which
I know a girl. Her sister is in Canada.
I know a girl whose sister is in Canada.
I rented a house. It is very small.
I rented a house that / which is very small.
Mike Wheeler is a boy __________ friend Will gets abducted by a monster.
whose
The story is about a young woman __________ 5-year old son suddenly disappears.
whose
Do you know the man __________ lives next door?
who
My grandfather was an airline pilot. He is sixty years old now.
My grandfather was an airline pilot who is sixty years old now. / My grandfather, who was an airline pilot, is sixty years old now.
Here is the book. It's really interesting!
Here is the book that / which is really interesting!