Here are the answers to the questions posed in Exercise 30A:
1. I liked to read fairy tales and adventure books in my childhood.
2. I learned subjects like mathematics, literature, and history at school.
3. I left school in 2010.
4. I became a student after finishing school in 2010.
5. I spent my last summer vacation at the seaside.
6. I last saw my friend two weeks ago.
7. I got a book as a present on my last birthday.
8. I invited around ten people to my birthday party.
9. I didn’t buy the dress because it was too expensive.
10. I stayed at my friend’s house for three days.
11. I paid 50 dollars for the jacket.
12. I saw a documentary about nature on TV yesterday.