Here are the questions and short answers using "can" and "can't" based on the prompts:

1. **Can I go to the park?**
No, you can't.

2. **Can we play football?**
Yes, you can.

3. **Can they watch the TV?**
Yes, they can.

4. **Can he go skateboarding?**
No, he can't.

5. **Can I buy a new coat?**
Yes, you can.

6. **Can she stay with Sally?**
No, she can't.

7. **Can they use the computer?**
No, they can't.

8. **Can I make a cake?**
Yes, you can.

9. **Can she visit Grandma?**
Yes, she can.

10. **Can we do our homework later?**
No, you can't.