Question

2 do you have to /does you have to study French? No, we Dont /doesnt.
3 you dont have to/doesnt have to shout.
4 do/does Anna have to get up early? Yes, she do /does.

Answer 1

2 do you have to study French? No, we don’t.

3 you don't have to shout.

4 does Anna have to get up early? Yes, she does.