A. What time do you go to school?

The school is vacation. 

I go to school at  (mention the time).

B. Skate board is my favorite toy.

=> Another way: Your sentence is okay and this is another way of saying it.​

Do you have a skateboard? 

What is that?

​=> Another way: Your sentence is okay and this is another way of saying it.​

No, I don't. 

I like skate board too, but I like robot.

=> Another way: Your sentence is okay and this is another way of saying it.​

Does Minsu have a skateboard?​