1. Do you have to study every night?
Yes, I do.
2. Does Dan have to walk to school every day?
No, he doesn't.
3. Do the boys have to be there at ten o'clock?
Yes, they do.
4. Do I have to put the money in here?
No, you don't.
5. Do we have to finish the project today?
Yes, we do.
6. Does Sarah have to wear a uniform at her school?
Yes, she does.
7. Do they have to come with us?
Yes, they do.
8. Does the answer have to be in English?
No, it doesn't.
