The man ___ lives next door is a doctor.
The man who lives next door is a doctor.
This is the cake ___ I made for your birthday.
This is the cake that I made for your birthday.
He has a laptop ___ is very light and easy to carry.
He has a laptop which/that is very light and easy to carry.
The book ___ you lent me was fascinating.
The book that/which you lent me was fascinating.
This is the hotel ___ we stayed last year.
This is the hotel where we stayed last year.
We went to a city ___ is known for its ancient ruins.
We went to a city which is known for its ancient ruins.
There is a museum ___ we visited last summer.
There is a museum where we visited last summer.
This is the house ___ Jack built.
This is the house that/which Jack built.
This smartphone, ____ I bought last week, takes great photos.
This smartphone, which I bought last week, takes great photos.
The book ____________ I read last week is fascinating. You must read it, too!
The book WHICH / THAT I read last week is fascinating. You must read it, too!
She knows someone ___ can help us with our project.
She knows someone who can help us with our project.
Dublin, ___ is the capital of Ireland, is my favourite city.
Dublin, which is the capital of Ireland, is my favourite city.
Mr Kemp, ____ teaches physics, is going to retire next year.
Mr Kemp, who teaches physics, is going to retire next year.
That's the store ___ you can find rare books.
That's the store where you can find rare books.
I work with people ___ speak several languages.
I work with people who speak several languages.
They live in the town ___ is known for its historic castle.
They live in the town which is known for its historic castle.
They visited the town ___ the festival takes place every summer.
They visited the town where the festival takes place every summer.
She visited the village ___ her grandparents were born and raised.
She visited the village where her grandparents were born and raised.
I have a collection of old coins ___ were found in various countries.
I have a collection of old coins that/which were found in various countries.
The book, ___ I bought in London, is extremely dull.
The book, which I bought in London, is extremely dull.
My father, ___ lives separate us, changes a job.
My father, who lives separate us, changes a job.
He wrote an article ___ was published in a famous magazine.
He wrote an article that/which was published in a famous magazine.
They went to a conference ___ was held in a different city every year.
They went to a conference which was held in a different city every year.