Fill in it or there.

1. ... snows a lot in Russia in winter.
2. Take your umbrella. ... is going to rain and ... is windy , too.
3. ... was a strong wind yesterday.
4. ... is dark in the room. Can you turn on the light ?
5. ... is a big cloud in the sky. ... in going torain.
6. ... is a bus coming. ... is full.
7. ... is a cat at the door. Is ... Mrs. Brown's ?
8. Who is ...? - ... is me.
9. ... is important to learn this rule.