1) Rains.
2) Rains.
3) Is raining.
4) Does it snow ?
5) Does.
6) Isn't raining.
7) Snow.
8) Is snowing.
9) Don't.
10) Snow.
11) Snowing.
12) Isn't raining.
13) Doesn't raining.
14) Isn't snowing.
15) Is raining.
Я не уверен что все правильно , ты только скажи я поправлюсь :)