Употребите to be или to have в правильной форме the lesson over. these parallel lines. she a nice flat. how many children they? they a small cottage.it far away. what these?

1) is
2) are
3) has
4) have
5) have, is
6) are

The lesson _IS__ over.
These _ARE__ parallel lines.
She _HAS__ a nice flat.
How many children _DO __ they HAVE?
They _HAVE__ a small cottage.It _IS__ far away.
What _ARE__ these?