1 Can I use my laptop in the exam? Yes, you can.
2 Can penguins fly? No, they can`t
3 Can Pep Guardiola speak four languages? Yes, he can.
4 Can you leave school when you`re fifteen? No, you can`t.
5 Can we use our skateboards to go to school? No, you can`t / No, we can`t