Put the verbs in brackets into the correct form of the present simple...

Question

Put the verbs in brackets into the correct form of the present simple
Where..........(they/be) from?
My sister............(be) very polite but my brother...........(not/be)
How many rooms..............(be) there in your house?
СРОЧНО!!!!!!!!!!!1 ДАЮ 20 БАЛЛОВ!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

1)are they
2)is, isn't
3)are