It winter. a)go snow b)go snows c)snows d)snowing

It often snows in winter.

It often snows in winter
Я не уверена, но вроде так

Dear подставь имя (кому пишешь),
I was really happy to get your letter. Sorry I haven't written for so long, but I was very busy with my school.
It's  a nice idea to celebrate   such a special day like the Earth Hour.  As I know, there is the Earth day in Russia and it's celebrated on the 22d of April.
Most people in our country try to save energy. They do it in different ways. Some of them use electricity only if they need it and don't waste it. Others use solar batteries , it helps to save energy. 
I certainly approve the Green Movement because it's very important to save our planet from pollution and keep it green and healthy and they do a lot for it .
Sorry, but I have to go . I promised my little sister to help her with her English.
Keep in touch!
Love,
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Dear [имя],
Thanks for your letter. It was lovely to hear from you. The Earth Hour sound like a great idea! Do you do it every year?

 

Speaking of The Earth Hour in my area, I haven't heard of it here. Maybe some people switched off the lights in their houses but not many, otherwise I'd notice. We do, though, save energy on daily basis by switching the lights off when it's not dark outside or by turning central heating off when we leave home. I definitely approve the Green Movement as I'm really concerned about the poor ecological situation. We should care more about the environment.

Well, I'd better go now. I promised to help my mom in the kitchen.
Looking forward to hearing from you soon.

Love,

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