This is the house. Jack built it.
This is the house that/which Jack built
Glasgow is the largest city in Scotland. My brother lives there.
Glasgow, where my brother lives, is the largest city in Scotland.
Once upon a time there lived a giant. The giant was very powerful and cruel.
Once upon a time there lived a giant who was very powerful and cruel.
I know a man. He wears a prosthetic leg.
I know a man who wears a prosthetic leg.
The dog bit the burglar. He was trying to break into the house.
The dog bit the burglar who was trying to break into the house.
I saw a soldier. He had lost an arm.
I saw a soldier who had lost an arm.
The parcel reached me this morning. My brother sent it.
The parcel that/which my brother sent reached me this morning.
Catherine is very friendly. She lives next door.
Catherine, who lives next door, is very friendly.
The boy didn’t do his homework. The teacher got angry with him.
The teacher got angry with the boy who didn’t do his homework.
Sheila is away from home a lot. Her job involves a lot of travelling.
Sheila, whose job involves a lot of travelling, is away from home a lot.
Bring me the file. The file is on the table.
Bring me the file that/which is on the table.
The new stadium will be opened next month. It can hold 90,000 people.
The new stadium, which can hold 90,000 people, will be opened next month.
We met a girl. The girl had lost her way.
We met a girl who had lost her way.
A friend of mine helped me to get a job. His father is the manager of a company.
A friend of mine, whose father is the manager of a company, helped me to get a job.