1. We have _a_ cat and __a__ dog, ___the__ cat doesn’t get on well with __the_ dog.

2. You can see __the__ moon clearly in the Mid-Autumn festival.

3. He is _a___famous actor.

4. My brother doesn’t like __the__ present I gave him.

5. Where is __the__ book I lent you last week?

6. My father works as _an__ electrician.

7. Have you ever heard about __the__ River Thames?

8. I want to travel around ___the__ world when I grow up.

9. Yesterday my mother had _a_____terrible headache.

10. Where are __the__kids? They are playing outside.

11. Peter is ___the___most hard-working student I’ve ever known.

12. It is cold because____the___heating systems is broken.

13. Did you buy ____a___pair of shoes yesterday?

14. ___The __Earth orbits around __the_____Sun.

15. She took ___a___hamburger and __an__apple, but she didn’t eat __the__apple.

16. A boy and a girl is arguing over there, I think I know _the____boy.

17. My grandfather sent me ___a__letter and _a___gift but I haven’t received_____the___letter. 

18. My mom is __the___best mom in __the___world.

19. Would you like____a____glass of water?

20. James offered me ___a_____cup of coffee and __a___piece of cake. ___the__cake is