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