It is ____(snow) in Moscow in winter. It's ____(下雨)hard,so we have to stay at home. 什么时候加y,

问题描述:

It is ____(snow) in Moscow in winter. It's ____(下雨)hard,so we have to stay at home. 什么时候加y,
什么时候用ing?

snowy
这个之所以要变形容词,则因为看后面,说是冬天的莫斯科,这是一个常态,为一般现在时,所以不能变为现在分词
raining
后面说我们必须待在家里,说明正在下雨,所以用现在进行时,用现在分词
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