1. This is A dog. THE dog is smart.
2. He is A student.
3. Summer begins in June.
4. There are many people in the room. THE people are very noisy.
5. THE Smirnovs are very friendly.
6. This is A copy-book. THE copy-book is for English words.
7. Nick lives in A city. THE city is very big and old.
8. He is A teacher. He is our teacher.
9. Kate is A beautiful girl. She is THE most beautiful girl in the college.
10. There are some shops in our town. THE shops are very small.
11. This is A boy. THE boy is eating A hot dog.