3. We love walking under the rain.
   - We are interested in walking under the rain.

4. When you ask me for the car, I will lend it to you.
   - Should you ask me for the car, I will lend it to you.

5. It takes John 30 minutes to walk to school.
   - John spends 30 minutes walking to school.

6. She's interested in playing cards with her children at the weekend.
   - She's fond of playing cards with her children at the weekend.

7. She is keen on taking photos of her children.
   - She's interested in taking photos of her children.

8. We have no time to prepare the speech.
   - We don't have time to prepare the speech.

9. I promise to phone you next week.
   - I promise I will phone you next week.

10. My favorite hobby is watching the goldfish in the tank.
    - I am fond of watching the goldfish in the tank.

11. My mother dislikes preparing the meals.
    - My mother isn't passionate about preparing the meals.

12. He is interested in reading comic books.
    - He fancies reading comic books.

13. I think not many people like listening to music in their free time.
    - I think not many people are into listening to music in their free time.

14. If he studies hard, he will pass the exam.
    - Should he study hard, he will pass the exam.

15. Don't go out in the rain because you will get wet.
    - If you go out in the rain, you will get wet.