It's _wise choice to use a four wheel drive car on_snowy day.

问题描述:

It's _wise choice to use a four wheel drive car on_snowy day.

翻译为:
在雪天驾驶四轮汽车是明智的选择
这里 wise choice 和 snowy day 都不需要特指,所以前面的冠词都填a就行了