Dưới đây là những từ phù hợp để điền vào chỗ trống:

1. **who** - The parents thanked the woman **who** had saved their son.
2. **that** - The factory **that** closed last week had been there for many years.
3. **whom** - Two men, neither of **whom** I had been before, came into my office.
4. **that** - I like the ice-cream **that** they sell in that shop.
5. **that** - He ate the food **that** no one else wanted.
6. **which** - John has got a new mobile phone **which** takes photos.
7. **where** - The village **where** I ran out of petrol didn’t have a petrol station.
8. **which** - The job for **which** she has applied is in London.
9. **that** - John sold his computer, **that** he no longer needed, to his cousin.
10. **one** - Teddy has two cars, **one** of which is very expensive.
11. **that** - There are eighteen different kinds of penguins **that** live south of the equator.
12. **that** - Thank you very much for the present **that** you sent me.
13. **whose** - This is Mrs. Jones, **whose** son won the championship last year.
14. **whom** - His girlfriend, **whom** he trusted absolutely, turned out to be an enemy spy.
15. **of whom** - The bus crashed into a queue of people, four **of whom** were killed.
16. **whose** - A man bought in a little girl, **whose** hand was cut by flying glass.
17. **whose** - Mary, **whose** boyfriend didn’t turn up, ended by having lunch with Peter.
18. **which** - He paid me $5 for cleaning ten windows, most of **which** hadn’t been cleaned for at least a year.
19. **which** - In prison they fed us on dry bread, most of **which** was moldy.
20. **where** - The chair in **which** I was sitting suddenly collapsed.
21. **that** - The bed **that** I slept on has no mattress.
22. **who** - The man **who** I was waiting for didn’t turn up.

Hy vọng giúp ích cho bạn!