Choose the right verb forms to complete the sentences.

Choose the correct option.

It sometimes [snow|snows|is snowing|snowing] in October.

It [don't rain|doesn't rain|isn't rain|isn't raining] in winter.

It [don't snow|doesn't snow|isn't snow|isn't snowing] now.

The Sun [shine|shines|is shining|shining] because it's a big star.