v. 下雪（snow 的 ing 形式）
1.Is it snowing? But it isn't cold.
在下雪吗？但是天气不冷。
2.It's been snowing heavily all day.
大雪下了一整天。
3.Oh! It's snowing. How beautiful!
哇！下雪了！多么美呀！
4.It is snowing now in London.
现在伦敦正在下雪。
5.Was it snowing yesterday afternoon?
昨天下午下雪了吗？
6.Is it because of snowing?
是下雪的原因吗？
7.It was snowing heavily.
雪下得很大。