Ответ:
1)she is a student
Is she a student?
What's she doing?
Is she a student or a pupil?
She is a student, isn`t she?
2)He speaks English well.
Does he speak English well?
How does he speak English?
Does he speak English or Spanish well?
He speaks English well, doesn`t he?
3)They have many books
Do they have many books?
What do they have?
Do they have many books or pens?
They have many books, don`t they?
4)They were in many countries
Were they in many countries?
Where were they?
Were they in many countries or cities?
They were in many countries, weren`t they?