1. London which is the capital of England is one of the largest cities in the world.
1. London, which is the capital of England, is one of the largest cities in the world.
2. This is the dress my mother has made for me.
Correct, no commas are needed.
3. Queen Elizabeth II who is 83 has been the queen of England for 57 years now.
3. Queen Elizabeth II, who is 83, has been the queen of England for 57 years now.
4. That's the dog that bit me.
Correct, no commas are needed.
5. Tom Cruise who has starred in a lot of films is a famous American actor.
5. Tom Cruise, who has starred in a lot of films, is a famous American actor.
6. The village where I grew up is very small.
Correct, no commas are needed.
7. Greg whose job involves travelling a lot has been in nearly all the countries in the world.
7. Greg, whose job involves travelling a lot, has been in nearly all the countries in the world.
8. The office I have just rented is near my home.
Correct, we don't need commas.
9. This is the officer that arrested the burglar.
Correct, we don't need a comma.
10. Lady Gaga who is a well-known pop star was born in New York.
10. Lady Gaga, who is a well-known pop star, was born in New York.
