I called my friend. He lives in Ontario.
I called my friend who/that lives in Ontario.
We went to the Science museum. We had never visited it before.
We went to the Science museum, which we have never visited before.
An elephant is an animal. It lives in hot countries.
An elephant is an animal which/that lives in hot countries.
The sports centre has recently opened a new tennis court. I go swimming there.
The sports centre, where I go swimming, has recently open a new tennis court.
The little girl is sad. her doll was lost.
The little girl whose doll was lost is sad.
I live in a city. I also study there.
I live in the city where I study.
John's mother has 6 children. She lives in Scotland.
John's mother, who lives in Scotland, has six children.
Let's go to a country. The sun always shines there.
Let's go to a country where the sun always shines.
The castle was very nice. We visited it yesterday.
The castle which/that we visited yesterday was very nice.
My friend Peter has written a novel. He went to school with me.
My frien Peter, who went to school with me, has written a novel
Children are uncommon. They hate chocolate.
Cildren who hate chocolate are uncommon.
The day was amazing. You arrived then.
The day when you arrived was amazing.
These bikes cost a fortune. They are made in Japan.
These bikes, which are made in Japan, cost a fortune.
They live in a house. The roof of the house is full of holes.
They live in a house whose roof is full of holes.
The job is well paid. He applied for it.
The job which /that he applied for is well paid.
Do you like the song? I wrote it.
Do you like the song which / that I wrote?
My mum made us cupcakes yesterday. She has been baking for years.
My mum, who has been baking for years, made us cupcakes yesterday.