Giải thích các bước giải:

4: These are the key which open the front door and back door.

5: Here is an article that may interest you.

6: Where are the eggs which ar in the fridge.

7: Have you got something which will get ink out of the carpet?

8: Where's the girl who sell the ticket?

9: Half of the people who were invited didn't appear.

10: The Festival which is in late march or early April is called Easter.

15: Good morning ladies and gentlemen. My name is Phong. Today I will tell you about saving electricity.

17: Turn off the lights and the TV and radio are off.

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Chúc cậu thi tốt!!

4.These are the keys which open the front door and back door.

5. Here's an article which might interest you.

6. Where are the eggs that are in the fridge?

7. Have you got something which will get ink out of the carpet?

9. Half of the people who were invited didn't appear.

10. The Festival which is in late march or early April is called Easter.