请先圈出对话中的错误，并改正过来。
A：How many people is there in your family?
（1） __________________________
B：Five.
A：Where are they?
（2） __________________________
B：They’re my grandfother, grandmother, mother and me.
（3）___________________
A：What do they do?
B：My grandfather is a work.
（4）___________________________
My grandmother is a English teacher.
（5）__________________________
My father and my mother are all doctors.
A：We are happy.