Pouvez-vous m'aider pour cet exercice d'anglais, s'il-vous-plaît?

Is she sad ?
Am I a teacher?
Are they reading ?
Did she buy a car ?
Do I hate dogs ?
Do they have big problems ?
Did she see me ?
Did Mary hear the news ?
Would you come here ?
Should I stop now ?
Could you be sick ?
Can’t she walk ?
Would they be so happy ?
Must she be late ?
Will you come ?
Should we have dinner ?
Would they like it ?
Would she say yes ?
Is she dead ?