I. Who
1. The girl is Jane. She studied at university three years ago.
-> The girl________________________________________________
2. A girl was injured in the accident. She is now in hospital
-> A girl__________________________________________________
3. There's the boy. He broke the window.
-> There is the boy__________________________________________
4. The man was sick. He looked very pale.
-> The man________________________________________________
5. The man is playing tennis. He is a famous player.
-> The man________________________________________________
6. The man is talking to my father. He spent 15 minutes measuring our kitchen.
-> The man________________________________________________
7. The children went to New York. They speak English.
-> The children________________________________________________
8. The woman is standing over there. She is my sister.
-> The woman________________________________________________
9. The boys came late. They were punished.
-> The boys________________________________________________
10. There are the policemen. They caught the thief.
-> There are the policemen____________________________________
II. Which
1. The book is on the table. It is mine.
-> The book________________________________________________
2.The letter hasn't arrived yet. I posted it three days ago.
-> The letter________________________________________________
3. The sweets are delicious. I bought them yesterday
-> The sweets______________________________________________
4. I gave you a book. It had many pictures
-> I gave you a book_________________________________________
5. That's the dictionary. Bill gave it to me for Christmas
-> That’s the dictionary______________________________________
6. I’m reading the book. I bought it in 1996
-> I’m reading the book______________________________________
7. The street leads to my school. It is very dirty in rainy seasons
-> The street_______________________________________________
8. The novel read two days ago. It had 450 pages.
-> The novel_______________________________________________
9. The computer is old. I have used it for 10 years.
-> The computer____________________________________________
10. The car parked in front of my house. It had black.
-> The car________________________________________________
III. Whom
1. Do you like the people? Sarah invited them to her party
-> Do you like the people____________________________________?
2. The man is John. We are talking to him.
-> The man________________________________________________
3. The girl is a famous singer. I wanted to meet her.
-> The girl________________________________________________
4. I know the girl. I spoke to this girl.
-> I know the girl___________________________________________
5. I remembered the man. I had seen him at the concert.
-> I remembered the man_____________________________________
6. The boy is my nephew. You met him at the party.
-> The boy________________________________________________
7. The woman is wearing a pink hat. I met her at the supermarket yesterday.
-> The man________________________________________________
8. The boy is Tom . We spoke to him last week.
-> The boy________________________________________________
9. The chilren broke the window. We punished them yesterday.
-> The children____________________________________________
10. The lady came to the meeting late yesterday morning. I would like talk to her.
-> The lady________________________________________________
hai bạn đăng từng lần một bốn câu đi cho nó ..... thôi 
1. The girl who was injured in the acident is now in hospital.
2. A man answered the phone. He told me you were away.
The man ........who answered the phone told me you were away. ..........................................................................................
3. A waitress served us. She was very impolite and impatient.
The .....waitress who was very impolite and impatient served us....................................................................................................
4.A building was destroyed in the fire. It has now been rebuilt.
............. The building which was destroyed in the fire has now been rebuilt. .....................................................................................................
5.Some people were arrested . They have now been released.
The ....people who were arrested have now been released..........................................................................................................
6.A bus goes to the airport. It runs every half hour.
...................The bus which goes to the airport runs every half hour. ................................................................................................