It + be + S/O/ADV Phrase .. + that / who / whom + S+  V : câu chẻ 

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I)

1. It was the children who played football in the garden yesterday afternoon.

2. It was my sister who got a present from her uncle last week.

3. It was my uncle who taught me how to play the guitar.

4. It is my little brother who admires my teacher very much.

5. It was my mother who bought me that beautiful hat some days ago.

6. It was my parents who encouraged me to go to college.

7. It was my teacher who helped me to improve my pronunciation.

8. It is football that is considered one of the most exciting games nowadays.

9. It is his success that affects every aspect of my life.

10. It is English that becomes more and more popular in the world.

II) 

1. It was a new pair of shoes that my parents bought me on my birthday.

2. It was the man that the police asked a lot of questions.

3. It was some flowers that Jack sent to me when I was in hospital.

4. It is a large number of notebooks that the company will send to poor children in this area.

5. It is English that people speak in many countries in the world.

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