1)
1 - Is mrs White a teacher?
2- Is her pen red?
3- Is she happy?
4- Are they students?
5- Is it cold today?
2)
1- What is it?
2- When is my birthday?
3- Who is my favoutite actor?
4- Where are my keys?
5- How old is Mike?
3)
1- She is a student, isn't she?
2- They aren't doctors, are they?
3- Mary is 20, isn't she?
4- Paul and Sue aren't teachers, are they?
5- John is tall, isn't he?