1) which - who - that - where - what - why - whose – whom The books, I'd ordered over the internet, took nearly three weeks to arrive.

2) which - who - that - where - what - why - whose - whom The books I'd ordered from a bookshop arrived the following week.

3) which - who - that - where - what - why - whose - whom My parents, were born in the north of England, moved to London to find work.

4) which - who - that - where - what - why - whose - whom The man lives upstairs is always playing music when I'm trying to get to sleep

5) which - who - that - where - what - why - whose - whom The building I live in was built in the 1920s.

6) which - who - that - where - what - why - whose - whom The building I live was built in the 1920s.

7) which - who - that - where - what - why - whose - whom The car's making a funny noise again, means we'll have to get someone to look at it.

8) which - who - that - where - what - why - whose - whom The employee to you refer is no longer working for this company.

9) which - who - that - where - what - why - whose - whom Do you remember the name of the man car you crashed into?

10) which - who - that - where - what - why - whose - whom Have you any idea they were arguing about?